<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Instance Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2020-05-08T19:58:29.4979978+00:00 -->
<!-- Version            : 5.0.1.385 -->
<!-- Package ID         : 28db125e020d48199f46a69349e23b02 -->
<!-- Copyright (c) 2020 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<xbrli:xbrl xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:country="http://xbrl.sec.gov/country/2017-01-31" xmlns:currency="http://xbrl.sec.gov/currency/2019-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:exch="http://xbrl.sec.gov/exch/2019-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2017-01-31" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:srt="http://fasb.org/srt/2019-01-31" xmlns:srt-types="http://fasb.org/srt-types/2019-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2018-01-31" xmlns:us-gaap="http://fasb.org/us-gaap/2019-01-31" xmlns:us-types="http://fasb.org/us-types/2019-01-31" xmlns:arct="http://arcturusrx.com/20200331" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:schemaRef xlink:type="simple" xlink:arcrole="http://www.xbrl.org/2003/linkbase" xlink:href="arct-20200331.xsd" />
  <xbrli:unit id="U_xbrlishares">
    <xbrli:measure>xbrli:shares</xbrli:measure>
  </xbrli:unit>
  <xbrli:unit id="U_iso4217USD">
    <xbrli:measure>iso4217:USD</xbrli:measure>
  </xbrli:unit>
  <xbrli:unit id="U_iso4217USD_xbrlishares">
    <xbrli:divide>
      <xbrli:unitNumerator>
        <xbrli:measure>iso4217:USD</xbrli:measure>
      </xbrli:unitNumerator>
      <xbrli:unitDenominator>
        <xbrli:measure>xbrli:shares</xbrli:measure>
      </xbrli:unitDenominator>
    </xbrli:divide>
  </xbrli:unit>
  <xbrli:unit id="U_iso4217SGD">
    <xbrli:measure>iso4217:SGD</xbrli:measure>
  </xbrli:unit>
  <xbrli:unit id="U_arctSegment">
    <xbrli:measure>arct:Segment</xbrli:measure>
  </xbrli:unit>
  <xbrli:unit id="U_arctTarget">
    <xbrli:measure>arct:Target</xbrli:measure>
  </xbrli:unit>
  <xbrli:unit id="U_xbrlipure">
    <xbrli:measure>xbrli:pure</xbrli:measure>
  </xbrli:unit>
  <xbrli:unit id="U_arctMilestone">
    <xbrli:measure>arct:Milestone</xbrli:measure>
  </xbrli:unit>
  <xbrli:context id="C_0001768224_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_20200506">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-05-06</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20181231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2018-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20181231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2018-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20181231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2018-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_20181231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2018-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtRangeAxis_srtMaximumMember_srtStatementGeographicalAxis_countrySG_20200304">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:StatementGeographicalAxis">country:SG</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-04</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_20200401_20200430">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:SubsequentEventTypeAxis">us-gaap:SubsequentEventMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-04-01</xbrli:startDate>
      <xbrli:endDate>2020-04-30</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_us-gaapSubsidiarySaleOfStockAxis_arctUnderwrittenPublicOfferingMember_20200401_20200430">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:SubsequentEventTypeAxis">us-gaap:SubsequentEventMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:SubsidiarySaleOfStockAxis">arct:UnderwrittenPublicOfferingMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-04-01</xbrli:startDate>
      <xbrli:endDate>2020-04-30</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_us-gaapSubsidiarySaleOfStockAxis_arctUnderwrittenPublicOfferingMember_20200420">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:SubsequentEventTypeAxis">us-gaap:SubsequentEventMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:SubsidiarySaleOfStockAxis">arct:UnderwrittenPublicOfferingMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-04-20</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtRangeAxis_srtMinimumMember_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_us-gaapSubsidiarySaleOfStockAxis_arctUnderwrittenPublicOfferingMember_20200401_20200430">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:SubsequentEventTypeAxis">us-gaap:SubsequentEventMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:SubsidiarySaleOfStockAxis">arct:UnderwrittenPublicOfferingMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-04-01</xbrli:startDate>
      <xbrli:endDate>2020-04-30</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerJanssenMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerJanssenMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerTakedaAndOtherMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerTakedaAndOtherMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerTakedaAndOtherMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerTakedaAndOtherMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerJanssenMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_srtRangeAxis_srtMinimumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20170101_20171231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerJanssenMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2017-01-01</xbrli:startDate>
      <xbrli:endDate>2017-12-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_srtRangeAxis_srtMaximumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20170101_20171231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerJanssenMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2017-01-01</xbrli:startDate>
      <xbrli:endDate>2017-12-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerJanssenMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapRevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_2020-04-01_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:typedMember dimension="us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis">
          <us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis.domain>2020-04-01</us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis.domain>
        </xbrldi:typedMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerJanssenMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerJanssenMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_srtRangeAxis_srtMinimumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_srtRangeAxis_srtMaximumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190616">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-06-16</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-06-18</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-06-18</xbrli:startDate>
      <xbrli:endDate>2019-06-18</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_srtRangeAxis_srtMaximumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-06-18</xbrli:startDate>
      <xbrli:endDate>2019-06-18</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:MRNATechnologyMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_srtProductOrServiceAxis_arctRareDiseaseTargetsMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:MRNATechnologyMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">arct:RareDiseaseTargetsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_srtProductOrServiceAxis_arctNonRareDiseaseTargetsMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:MRNATechnologyMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">arct:NonRareDiseaseTargetsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20190210_20190211">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:MRNATechnologyMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-02-10</xbrli:startDate>
      <xbrli:endDate>2019-02-11</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_us-gaapTypeOfArrangementAxis_arctTerminationAgreementMember_20190725_20190726">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:TerminationAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-07-25</xbrli:startDate>
      <xbrli:endDate>2019-07-26</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_srtRangeAxis_srtMaximumMember_20190725_20190726">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-07-25</xbrli:startDate>
      <xbrli:endDate>2019-07-26</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_srtRangeAxis_srtMinimumMember_20190725_20190726">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-07-25</xbrli:startDate>
      <xbrli:endDate>2019-07-26</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:MRNATechnologyMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:MRNATechnologyMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerCureVacMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:MRNATechnologyMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">us-gaap:AccountingStandardsUpdate201409Member</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapRelatedPartyTransactionsByRelatedPartyAxis_arctTakedaPharmaceuticalCompanyLimitedAndProvidenceTherapeuticsIncorporationMember_us-gaapTypeOfArrangementAxis_arctOtherCollaborationAgreementsMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:OtherCollaborationAgreementsMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">arct:TakedaPharmaceuticalCompanyLimitedAndProvidenceTherapeuticsIncorporationMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapEquipmentMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PropertyPlantAndEquipmentByTypeAxis">us-gaap:EquipmentMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapEquipmentMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PropertyPlantAndEquipmentByTypeAxis">us-gaap:EquipmentMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapComputerEquipmentMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PropertyPlantAndEquipmentByTypeAxis">us-gaap:ComputerEquipmentMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapComputerEquipmentMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PropertyPlantAndEquipmentByTypeAxis">us-gaap:ComputerEquipmentMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapFurnitureAndFixturesMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PropertyPlantAndEquipmentByTypeAxis">us-gaap:FurnitureAndFixturesMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapFurnitureAndFixturesMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PropertyPlantAndEquipmentByTypeAxis">us-gaap:FurnitureAndFixturesMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapLeaseholdImprovementsMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PropertyPlantAndEquipmentByTypeAxis">us-gaap:LeaseholdImprovementsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapLeaseholdImprovementsMember_20191231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PropertyPlantAndEquipmentByTypeAxis">us-gaap:LeaseholdImprovementsMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012_20181012">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:LoanAndSecurityAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:WesternAllianceBankMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:LongTermDebtMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2018-10-12</xbrli:startDate>
      <xbrli:endDate>2018-10-12</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_srtRangeAxis_srtMinimumMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012_20181012">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:LoanAndSecurityAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:WesternAllianceBankMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:LongTermDebtMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2018-10-12</xbrli:startDate>
      <xbrli:endDate>2018-10-12</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:LoanAndSecurityAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:WesternAllianceBankMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:LongTermDebtMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2018-10-12</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:LoanAndSecurityAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:WesternAllianceBankMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:LongTermDebtMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-10-30</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:LoanAndSecurityAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:WesternAllianceBankMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:LongTermDebtMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-10-30</xbrli:startDate>
      <xbrli:endDate>2019-10-30</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_srtRangeAxis_srtMinimumMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:LoanAndSecurityAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:WesternAllianceBankMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:LongTermDebtMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-10-30</xbrli:startDate>
      <xbrli:endDate>2019-10-30</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_srtRangeAxis_srtMaximumMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:LoanAndSecurityAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:WesternAllianceBankMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:LongTermDebtMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-10-30</xbrli:startDate>
      <xbrli:endDate>2019-10-30</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:LoanAndSecurityAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:WesternAllianceBankMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:LongTermDebtMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20130301_20130331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2013-03-01</xbrli:startDate>
      <xbrli:endDate>2013-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20130331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2013-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapVestingAxis_us-gaapShareBasedCompensationAwardTrancheOneMember_20130301_20130331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheOneMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2013-03-01</xbrli:startDate>
      <xbrli:endDate>2013-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapVestingAxis_us-gaapShareBasedCompensationAwardTrancheTwoMember_20130301_20130331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheTwoMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2013-03-01</xbrli:startDate>
      <xbrli:endDate>2013-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapVestingAxis_us-gaapShareBasedCompensationAwardTrancheThreeMember_20130301_20130331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheThreeMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2013-03-01</xbrli:startDate>
      <xbrli:endDate>2013-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapVestingAxis_arctShareBasedCompensationAwardTrancheFourMember_20130301_20130331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:VestingAxis">arct:ShareBasedCompensationAwardTrancheFourMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2013-03-01</xbrli:startDate>
      <xbrli:endDate>2013-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20161231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2016-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20171231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2017-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20141231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2014-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_20200501">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:SubsequentEventTypeAxis">us-gaap:SubsequentEventMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-05-01</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20170101_20171231">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">arct:RestrictedCommonStockMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2017-01-01</xbrli:startDate>
      <xbrli:endDate>2017-12-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_arctUnvestedRestrictedOrdinarySharesMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">arct:UnvestedRestrictedOrdinarySharesMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_arctUnvestedRestrictedOrdinarySharesMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">arct:UnvestedRestrictedOrdinarySharesMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtRangeAxis_srtMaximumMember_us-gaapPlanNameAxis_arctTwoThousandEighteenOmnibusInactivePlanMember_20180831">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PlanNameAxis">arct:TwoThousandEighteenOmnibusInactivePlanMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2018-08-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapPlanNameAxis_arctTwoThousandNineteenOmnibusIncentivePlanMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PlanNameAxis">arct:TwoThousandNineteenOmnibusIncentivePlanMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtRangeAxis_srtMaximumMember_us-gaapPlanNameAxis_arctTwoThousandNineteenOmnibusIncentivePlanMember_20190630">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:PlanNameAxis">arct:TwoThousandNineteenOmnibusIncentivePlanMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-06-30</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapIncomeStatementLocationAxis_us-gaapResearchAndDevelopmentExpenseMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:ResearchAndDevelopmentExpenseMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapIncomeStatementLocationAxis_us-gaapResearchAndDevelopmentExpenseMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:ResearchAndDevelopmentExpenseMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapIncomeStatementLocationAxis_us-gaapGeneralAndAdministrativeExpenseMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:GeneralAndAdministrativeExpenseMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapIncomeStatementLocationAxis_us-gaapGeneralAndAdministrativeExpenseMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:GeneralAndAdministrativeExpenseMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtRangeAxis_srtMaximumMember_srtStatementGeographicalAxis_countrySG_us-gaapTypeOfArrangementAxis_arctCOVIDNineteenVaccineDevelopmentMember_20200304">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:StatementGeographicalAxis">country:SG</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:COVIDNineteenVaccineDevelopmentMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-04</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapTypeOfArrangementAxis_arctCOVIDNineteenVaccineDevelopmentMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:COVIDNineteenVaccineDevelopmentMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtProductOrServiceAxis_arctLUNARCFMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713_20190713">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">arct:LUNARCFMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-07-13</xbrli:startDate>
      <xbrli:endDate>2019-07-13</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtProductOrServiceAxis_arctLUNARCFMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190712_20190712">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">arct:LUNARCFMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-07-12</xbrli:startDate>
      <xbrli:endDate>2019-07-12</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713_20190713">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-07-13</xbrli:startDate>
      <xbrli:endDate>2019-07-13</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtStatementScenarioAxis_arctDisbursementPeriodOneMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:StatementScenarioAxis">arct:DisbursementPeriodOneMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-07-13</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtStatementScenarioAxis_arctDisbursementPeriodTwoMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:StatementScenarioAxis">arct:DisbursementPeriodTwoMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-07-13</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtStatementScenarioAxis_arctDisbursementPeriodThreeMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:StatementScenarioAxis">arct:DisbursementPeriodThreeMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-07-13</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtStatementScenarioAxis_arctDisbursementPeriodFourMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:StatementScenarioAxis">arct:DisbursementPeriodFourMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-07-13</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2019-07-13</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CysticFibrosisFoundationTherapeuticsIncMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:UnderlyingAgreementMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapTypeOfArrangementAxis_arctOctoberTwoThousandAndSeventeenLeaseAmendmentMember_20171031">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:OctoberTwoThousandAndSeventeenLeaseAmendmentMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2017-10-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_us-gaapTypeOfArrangementAxis_arctOctoberTwoThousandAndSeventeenLeaseAmendmentMember_20171001_20171031">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:OctoberTwoThousandAndSeventeenLeaseAmendmentMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2017-10-01</xbrli:startDate>
      <xbrli:endDate>2017-10-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_20200131">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-01-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_20200101_20200131">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-01-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190101_20190331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:TypeOfArrangementAxis">arct:ResearchCollaborationAndExclusiveLicenseAgreementMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">arct:CollaborationPartnerUltragenyxMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2019-01-01</xbrli:startDate>
      <xbrli:endDate>2019-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_arctADAIRTechnologyMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">arct:ADAIRTechnologyMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtRangeAxis_srtMinimumMember_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_arctADAIRTechnologyMember_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">arct:ADAIRTechnologyMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2020-03-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="C_0001768224_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_arctADAIRTechnologyMember_20200101_20200331">
    <xbrli:entity>
      <xbrli:identifier scheme="http://www.sec.gov/CIK">0001768224</xbrli:identifier>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">arct:ADAIRTechnologyMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:startDate>2020-01-01</xbrli:startDate>
      <xbrli:endDate>2020-03-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <dei:DocumentType id="F_000000" contextRef="C_0001768224_20200101_20200331">10-Q</dei:DocumentType>
  <dei:AmendmentFlag id="F_000001" contextRef="C_0001768224_20200101_20200331">false</dei:AmendmentFlag>
  <dei:DocumentPeriodEndDate id="F_000002" contextRef="C_0001768224_20200101_20200331">2020-03-31</dei:DocumentPeriodEndDate>
  <dei:DocumentFiscalYearFocus id="F_000003" contextRef="C_0001768224_20200101_20200331">2020</dei:DocumentFiscalYearFocus>
  <dei:DocumentFiscalPeriodFocus id="F_000004" contextRef="C_0001768224_20200101_20200331">Q1</dei:DocumentFiscalPeriodFocus>
  <dei:EntityRegistrantName id="F_000005" contextRef="C_0001768224_20200101_20200331">ARCTURUS THERAPEUTICS HOLDINGS INC.</dei:EntityRegistrantName>
  <dei:EntityCentralIndexKey id="F_000006" contextRef="C_0001768224_20200101_20200331">0001768224</dei:EntityCentralIndexKey>
  <dei:EntityCurrentReportingStatus id="F_000007" contextRef="C_0001768224_20200101_20200331">Yes</dei:EntityCurrentReportingStatus>
  <dei:EntityInteractiveDataCurrent id="F_000008" contextRef="C_0001768224_20200101_20200331">Yes</dei:EntityInteractiveDataCurrent>
  <dei:CurrentFiscalYearEndDate id="F_000009" contextRef="C_0001768224_20200101_20200331">--12-31</dei:CurrentFiscalYearEndDate>
  <dei:EntityFilerCategory id="F_000010" contextRef="C_0001768224_20200101_20200331">Accelerated Filer</dei:EntityFilerCategory>
  <dei:EntitySmallBusiness id="F_000011" contextRef="C_0001768224_20200101_20200331">true</dei:EntitySmallBusiness>
  <dei:EntityEmergingGrowthCompany id="F_000012" contextRef="C_0001768224_20200101_20200331">false</dei:EntityEmergingGrowthCompany>
  <dei:EntityShellCompany id="F_000013" contextRef="C_0001768224_20200101_20200331">false</dei:EntityShellCompany>
  <dei:EntityFileNumber id="F_000014" contextRef="C_0001768224_20200101_20200331">001-38942</dei:EntityFileNumber>
  <dei:EntityIncorporationStateCountryCode id="F_000015" contextRef="C_0001768224_20200101_20200331">DE</dei:EntityIncorporationStateCountryCode>
  <dei:EntityTaxIdentificationNumber id="F_000016" contextRef="C_0001768224_20200101_20200331">32-0595345</dei:EntityTaxIdentificationNumber>
  <dei:EntityAddressAddressLine1 id="F_000017" contextRef="C_0001768224_20200101_20200331">10628 Science Center Drive</dei:EntityAddressAddressLine1>
  <dei:EntityAddressAddressLine2 id="F_000018" contextRef="C_0001768224_20200101_20200331">Suite 250</dei:EntityAddressAddressLine2>
  <dei:EntityAddressCityOrTown id="F_000019" contextRef="C_0001768224_20200101_20200331">San Diego</dei:EntityAddressCityOrTown>
  <dei:EntityAddressStateOrProvince id="F_000020" contextRef="C_0001768224_20200101_20200331">CA</dei:EntityAddressStateOrProvince>
  <dei:EntityAddressPostalZipCode id="F_000021" contextRef="C_0001768224_20200101_20200331">92121</dei:EntityAddressPostalZipCode>
  <dei:CityAreaCode id="F_000022" contextRef="C_0001768224_20200101_20200331">858</dei:CityAreaCode>
  <dei:LocalPhoneNumber id="F_000023" contextRef="C_0001768224_20200101_20200331">900-2660</dei:LocalPhoneNumber>
  <dei:EntityCommonStockSharesOutstanding id="F_000024" contextRef="C_0001768224_20200506" decimals="INF" unitRef="U_xbrlishares">19892287</dei:EntityCommonStockSharesOutstanding>
  <dei:DocumentQuarterlyReport id="F_000025" contextRef="C_0001768224_20200101_20200331">true</dei:DocumentQuarterlyReport>
  <dei:DocumentTransitionReport id="F_000026" contextRef="C_0001768224_20200101_20200331">false</dei:DocumentTransitionReport>
  <dei:Security12bTitle id="F_000027" contextRef="C_0001768224_20200101_20200331">Common Stock, par value $0.001 per share</dei:Security12bTitle>
  <dei:TradingSymbol id="F_000028" contextRef="C_0001768224_20200101_20200331">ARCT</dei:TradingSymbol>
  <dei:SecurityExchangeName id="F_000029" contextRef="C_0001768224_20200101_20200331">NASDAQ</dei:SecurityExchangeName>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue id="F_000030" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">59471000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue id="F_000031" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">71353000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:AccountsReceivableNetCurrent id="F_000032" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">2351000</us-gaap:AccountsReceivableNetCurrent>
  <us-gaap:AccountsReceivableNetCurrent id="F_000033" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">2179000</us-gaap:AccountsReceivableNetCurrent>
  <arct:PrepaidExpensesAndOtherReceivables id="F_000034" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1937000</arct:PrepaidExpensesAndOtherReceivables>
  <arct:PrepaidExpensesAndOtherReceivables id="F_000035" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">758000</arct:PrepaidExpensesAndOtherReceivables>
  <us-gaap:AssetsCurrent id="F_000036" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">63759000</us-gaap:AssetsCurrent>
  <us-gaap:AssetsCurrent id="F_000037" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">74290000</us-gaap:AssetsCurrent>
  <us-gaap:PropertyPlantAndEquipmentNet id="F_000038" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">2571000</us-gaap:PropertyPlantAndEquipmentNet>
  <us-gaap:PropertyPlantAndEquipmentNet id="F_000039" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">2349000</us-gaap:PropertyPlantAndEquipmentNet>
  <us-gaap:OperatingLeaseRightOfUseAsset id="F_000040" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">5567000</us-gaap:OperatingLeaseRightOfUseAsset>
  <us-gaap:OperatingLeaseRightOfUseAsset id="F_000041" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">5134000</us-gaap:OperatingLeaseRightOfUseAsset>
  <us-gaap:EquityMethodInvestments id="F_000042" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">100000</us-gaap:EquityMethodInvestments>
  <us-gaap:EquityMethodInvestments id="F_000043" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">263000</us-gaap:EquityMethodInvestments>
  <us-gaap:RestrictedCashNoncurrent id="F_000044" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">107000</us-gaap:RestrictedCashNoncurrent>
  <us-gaap:RestrictedCashNoncurrent id="F_000045" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">107000</us-gaap:RestrictedCashNoncurrent>
  <us-gaap:Assets id="F_000046" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">72104000</us-gaap:Assets>
  <us-gaap:Assets id="F_000047" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">82143000</us-gaap:Assets>
  <us-gaap:AccountsPayableCurrent id="F_000048" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">3779000</us-gaap:AccountsPayableCurrent>
  <us-gaap:AccountsPayableCurrent id="F_000049" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">5793000</us-gaap:AccountsPayableCurrent>
  <us-gaap:AccruedLiabilitiesCurrent id="F_000050" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">9775000</us-gaap:AccruedLiabilitiesCurrent>
  <us-gaap:AccruedLiabilitiesCurrent id="F_000051" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">7134000</us-gaap:AccruedLiabilitiesCurrent>
  <us-gaap:DeferredRevenueCurrent id="F_000052" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">8096000</us-gaap:DeferredRevenueCurrent>
  <us-gaap:DeferredRevenueCurrent id="F_000053" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">8397000</us-gaap:DeferredRevenueCurrent>
  <us-gaap:LiabilitiesCurrent id="F_000054" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">21650000</us-gaap:LiabilitiesCurrent>
  <us-gaap:LiabilitiesCurrent id="F_000055" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">21324000</us-gaap:LiabilitiesCurrent>
  <us-gaap:DeferredRevenueNoncurrent id="F_000056" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">13815000</us-gaap:DeferredRevenueNoncurrent>
  <us-gaap:DeferredRevenueNoncurrent id="F_000057" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">15182000</us-gaap:DeferredRevenueNoncurrent>
  <us-gaap:LongTermDebtNoncurrent id="F_000058" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">15028000</us-gaap:LongTermDebtNoncurrent>
  <us-gaap:LongTermDebtNoncurrent id="F_000059" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">14995000</us-gaap:LongTermDebtNoncurrent>
  <us-gaap:OperatingLeaseLiabilityNoncurrent id="F_000060" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">4629000</us-gaap:OperatingLeaseLiabilityNoncurrent>
  <us-gaap:OperatingLeaseLiabilityNoncurrent id="F_000061" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">4850000</us-gaap:OperatingLeaseLiabilityNoncurrent>
  <us-gaap:Liabilities id="F_000062" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">55122000</us-gaap:Liabilities>
  <us-gaap:Liabilities id="F_000063" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">56351000</us-gaap:Liabilities>
  <us-gaap:CommonStockValue id="F_000064" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">15000</us-gaap:CommonStockValue>
  <us-gaap:CommonStockValue id="F_000065" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">15000</us-gaap:CommonStockValue>
  <us-gaap:AdditionalPaidInCapital id="F_000066" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">98412000</us-gaap:AdditionalPaidInCapital>
  <us-gaap:AdditionalPaidInCapital id="F_000067" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">97445000</us-gaap:AdditionalPaidInCapital>
  <us-gaap:RetainedEarningsAccumulatedDeficit id="F_000068" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">-81445000</us-gaap:RetainedEarningsAccumulatedDeficit>
  <us-gaap:RetainedEarningsAccumulatedDeficit id="F_000069" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">-71668000</us-gaap:RetainedEarningsAccumulatedDeficit>
  <us-gaap:StockholdersEquity id="F_000070" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">16982000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000071" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">25792000</us-gaap:StockholdersEquity>
  <us-gaap:LiabilitiesAndStockholdersEquity id="F_000072" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">72104000</us-gaap:LiabilitiesAndStockholdersEquity>
  <us-gaap:LiabilitiesAndStockholdersEquity id="F_000073" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">82143000</us-gaap:LiabilitiesAndStockholdersEquity>
  <us-gaap:CommonStockParOrStatedValuePerShare id="F_000074" contextRef="C_0001768224_20200331" decimals="3" unitRef="U_iso4217USD_xbrlishares">0.001</us-gaap:CommonStockParOrStatedValuePerShare>
  <us-gaap:CommonStockParOrStatedValuePerShare id="F_000075" contextRef="C_0001768224_20191231" decimals="3" unitRef="U_iso4217USD_xbrlishares">0.001</us-gaap:CommonStockParOrStatedValuePerShare>
  <us-gaap:CommonStockSharesAuthorized id="F_000076" contextRef="C_0001768224_20200331" decimals="INF" unitRef="U_xbrlishares">30000000</us-gaap:CommonStockSharesAuthorized>
  <us-gaap:CommonStockSharesAuthorized id="F_000077" contextRef="C_0001768224_20191231" decimals="INF" unitRef="U_xbrlishares">30000000</us-gaap:CommonStockSharesAuthorized>
  <us-gaap:CommonStockSharesIssued id="F_000078" contextRef="C_0001768224_20200331" decimals="INF" unitRef="U_xbrlishares">15157000</us-gaap:CommonStockSharesIssued>
  <us-gaap:CommonStockSharesIssued id="F_000079" contextRef="C_0001768224_20191231" decimals="INF" unitRef="U_xbrlishares">15138000</us-gaap:CommonStockSharesIssued>
  <us-gaap:CommonStockSharesOutstanding id="F_000080" contextRef="C_0001768224_20200331" decimals="INF" unitRef="U_xbrlishares">15157000</us-gaap:CommonStockSharesOutstanding>
  <us-gaap:CommonStockSharesOutstanding id="F_000081" contextRef="C_0001768224_20191231" decimals="INF" unitRef="U_xbrlishares">15138000</us-gaap:CommonStockSharesOutstanding>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000082" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">2646000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000083" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">4350000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:ResearchAndDevelopmentExpense id="F_000084" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">7917000</us-gaap:ResearchAndDevelopmentExpense>
  <us-gaap:ResearchAndDevelopmentExpense id="F_000085" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">7324000</us-gaap:ResearchAndDevelopmentExpense>
  <us-gaap:GeneralAndAdministrativeExpense id="F_000086" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">4191000</us-gaap:GeneralAndAdministrativeExpense>
  <us-gaap:GeneralAndAdministrativeExpense id="F_000087" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">3534000</us-gaap:GeneralAndAdministrativeExpense>
  <us-gaap:OperatingExpenses id="F_000088" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">12108000</us-gaap:OperatingExpenses>
  <us-gaap:OperatingExpenses id="F_000089" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">10858000</us-gaap:OperatingExpenses>
  <us-gaap:OperatingIncomeLoss id="F_000090" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-9462000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OperatingIncomeLoss id="F_000091" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-6508000</us-gaap:OperatingIncomeLoss>
  <us-gaap:IncomeLossFromEquityMethodInvestments id="F_000092" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-163000</us-gaap:IncomeLossFromEquityMethodInvestments>
  <us-gaap:IncomeLossFromEquityMethodInvestments id="F_000093" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-288000</us-gaap:IncomeLossFromEquityMethodInvestments>
  <us-gaap:OtherNonoperatingIncomeExpense id="F_000094" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-152000</us-gaap:OtherNonoperatingIncomeExpense>
  <us-gaap:OtherNonoperatingIncomeExpense id="F_000095" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-88000</us-gaap:OtherNonoperatingIncomeExpense>
  <us-gaap:NetIncomeLoss id="F_000096" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-9777000</us-gaap:NetIncomeLoss>
  <us-gaap:NetIncomeLoss id="F_000097" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-6884000</us-gaap:NetIncomeLoss>
  <us-gaap:EarningsPerShareBasicAndDiluted id="F_000098" contextRef="C_0001768224_20200101_20200331" decimals="2" unitRef="U_iso4217USD_xbrlishares">-0.67</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:EarningsPerShareBasicAndDiluted id="F_000099" contextRef="C_0001768224_20190101_20190331" decimals="2" unitRef="U_iso4217USD_xbrlishares">-0.68</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted id="F_000100" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_xbrlishares">14521000</us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted>
  <us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted id="F_000101" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_xbrlishares">10095000</us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted>
  <us-gaap:ComprehensiveIncomeNetOfTax id="F_000102" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-9777000</us-gaap:ComprehensiveIncomeNetOfTax>
  <us-gaap:ComprehensiveIncomeNetOfTax id="F_000103" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-6884000</us-gaap:ComprehensiveIncomeNetOfTax>
  <us-gaap:SharesOutstanding id="F_000104" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20191231" decimals="-3" unitRef="U_xbrlishares">15138000</us-gaap:SharesOutstanding>
  <us-gaap:StockholdersEquity id="F_000105" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20191231" decimals="-3" unitRef="U_iso4217USD">15000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000106" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20191231" decimals="-3" unitRef="U_iso4217USD">97445000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000107" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20191231" decimals="-3" unitRef="U_iso4217USD">-71668000</us-gaap:StockholdersEquity>
  <us-gaap:NetIncomeLoss id="F_000108" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-9777000</us-gaap:NetIncomeLoss>
  <us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue id="F_000109" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">849000</us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>
  <us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue id="F_000110" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">849000</us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>
  <us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised id="F_000111" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20200101_20200331" decimals="-3" unitRef="U_xbrlishares">19000</us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised>
  <us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised id="F_000112" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">118000</us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised>
  <us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised id="F_000113" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">118000</us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised>
  <us-gaap:SharesOutstanding id="F_000114" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20200331" decimals="-3" unitRef="U_xbrlishares">15157000</us-gaap:SharesOutstanding>
  <us-gaap:StockholdersEquity id="F_000115" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20200331" decimals="-3" unitRef="U_iso4217USD">15000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000116" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20200331" decimals="-3" unitRef="U_iso4217USD">98412000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000117" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20200331" decimals="-3" unitRef="U_iso4217USD">-81445000</us-gaap:StockholdersEquity>
  <us-gaap:SharesOutstanding id="F_000118" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20181231" decimals="-3" unitRef="U_xbrlishares">10762000</us-gaap:SharesOutstanding>
  <us-gaap:StockholdersEquity id="F_000119" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20181231" decimals="-3" unitRef="U_iso4217USD">214000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000120" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20181231" decimals="-3" unitRef="U_iso4217USD">58302000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000121" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20181231" decimals="-3" unitRef="U_iso4217USD">-44874000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000122" contextRef="C_0001768224_20181231" decimals="-3" unitRef="U_iso4217USD">13642000</us-gaap:StockholdersEquity>
  <us-gaap:NetIncomeLoss id="F_000123" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-6884000</us-gaap:NetIncomeLoss>
  <us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue id="F_000124" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">399000</us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>
  <us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue id="F_000125" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">399000</us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>
  <us-gaap:CumulativeEffectOnRetainedEarningsTax1 id="F_000126" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-803000</us-gaap:CumulativeEffectOnRetainedEarningsTax1>
  <us-gaap:CumulativeEffectOnRetainedEarningsTax1 id="F_000127" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-803000</us-gaap:CumulativeEffectOnRetainedEarningsTax1>
  <us-gaap:SharesOutstanding id="F_000128" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20190331" decimals="-3" unitRef="U_xbrlishares">10762000</us-gaap:SharesOutstanding>
  <us-gaap:StockholdersEquity id="F_000129" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapCommonStockMember_20190331" decimals="-3" unitRef="U_iso4217USD">214000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000130" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapAdditionalPaidInCapitalMember_20190331" decimals="-3" unitRef="U_iso4217USD">58701000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000131" contextRef="C_0001768224_us-gaapStatementEquityComponentsAxis_us-gaapRetainedEarningsMember_20190331" decimals="-3" unitRef="U_iso4217USD">-52561000</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity id="F_000132" contextRef="C_0001768224_20190331" decimals="-3" unitRef="U_iso4217USD">6354000</us-gaap:StockholdersEquity>
  <us-gaap:DepreciationAndAmortization id="F_000133" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">182000</us-gaap:DepreciationAndAmortization>
  <us-gaap:DepreciationAndAmortization id="F_000134" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">172000</us-gaap:DepreciationAndAmortization>
  <us-gaap:ShareBasedCompensation id="F_000135" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">849000</us-gaap:ShareBasedCompensation>
  <us-gaap:ShareBasedCompensation id="F_000136" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">399000</us-gaap:ShareBasedCompensation>
  <arct:LossFromEquityMethodInvestments id="F_000137" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">163000</arct:LossFromEquityMethodInvestments>
  <arct:LossFromEquityMethodInvestments id="F_000138" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">288000</arct:LossFromEquityMethodInvestments>
  <us-gaap:OtherNoncashIncomeExpense id="F_000139" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-274000</us-gaap:OtherNoncashIncomeExpense>
  <us-gaap:OtherNoncashIncomeExpense id="F_000140" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-212000</us-gaap:OtherNoncashIncomeExpense>
  <us-gaap:IncreaseDecreaseInAccountsReceivable id="F_000141" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">172000</us-gaap:IncreaseDecreaseInAccountsReceivable>
  <us-gaap:IncreaseDecreaseInAccountsReceivable id="F_000142" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-24000</us-gaap:IncreaseDecreaseInAccountsReceivable>
  <us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets id="F_000143" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">1179000</us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets>
  <us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets id="F_000144" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">291000</us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets>
  <us-gaap:IncreaseDecreaseInAccountsPayable id="F_000145" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-2276000</us-gaap:IncreaseDecreaseInAccountsPayable>
  <us-gaap:IncreaseDecreaseInAccountsPayable id="F_000146" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">1585000</us-gaap:IncreaseDecreaseInAccountsPayable>
  <us-gaap:IncreaseDecreaseInAccruedLiabilities id="F_000147" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">1746000</us-gaap:IncreaseDecreaseInAccruedLiabilities>
  <us-gaap:IncreaseDecreaseInAccruedLiabilities id="F_000148" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-2060000</us-gaap:IncreaseDecreaseInAccruedLiabilities>
  <us-gaap:IncreaseDecreaseInContractWithCustomerLiability id="F_000149" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-1668000</us-gaap:IncreaseDecreaseInContractWithCustomerLiability>
  <us-gaap:IncreaseDecreaseInContractWithCustomerLiability id="F_000150" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">1144000</us-gaap:IncreaseDecreaseInContractWithCustomerLiability>
  <us-gaap:NetCashProvidedByUsedInOperatingActivities id="F_000151" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-11858000</us-gaap:NetCashProvidedByUsedInOperatingActivities>
  <us-gaap:NetCashProvidedByUsedInOperatingActivities id="F_000152" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-5411000</us-gaap:NetCashProvidedByUsedInOperatingActivities>
  <us-gaap:PaymentsToAcquirePropertyPlantAndEquipment id="F_000153" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">142000</us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>
  <us-gaap:PaymentsToAcquirePropertyPlantAndEquipment id="F_000154" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">78000</us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>
  <us-gaap:NetCashProvidedByUsedInInvestingActivities id="F_000155" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-142000</us-gaap:NetCashProvidedByUsedInInvestingActivities>
  <us-gaap:NetCashProvidedByUsedInInvestingActivities id="F_000156" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-78000</us-gaap:NetCashProvidedByUsedInInvestingActivities>
  <us-gaap:ProceedsFromStockOptionsExercised id="F_000157" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">118000</us-gaap:ProceedsFromStockOptionsExercised>
  <us-gaap:NetCashProvidedByUsedInFinancingActivities id="F_000158" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">118000</us-gaap:NetCashProvidedByUsedInFinancingActivities>
  <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect id="F_000159" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-11882000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect>
  <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect id="F_000160" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">-5489000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect>
  <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents id="F_000161" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">71460000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
  <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents id="F_000162" contextRef="C_0001768224_20181231" decimals="-3" unitRef="U_iso4217USD">36816000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
  <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents id="F_000163" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">59578000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
  <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents id="F_000164" contextRef="C_0001768224_20190331" decimals="-3" unitRef="U_iso4217USD">31327000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
  <us-gaap:InterestPaidNet id="F_000165" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">228000</us-gaap:InterestPaidNet>
  <us-gaap:InterestPaidNet id="F_000166" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">167000</us-gaap:InterestPaidNet>
  <us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability id="F_000167" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">674000</us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability>
  <us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability id="F_000168" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">5868000</us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability>
  <us-gaap:CapitalExpendituresIncurredButNotYetPaid id="F_000169" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">262000</us-gaap:CapitalExpendituresIncurredButNotYetPaid>
  <us-gaap:CapitalExpendituresIncurredButNotYetPaid id="F_000170" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">135000</us-gaap:CapitalExpendituresIncurredButNotYetPaid>
  <us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock id="F_000171" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;&lt;font style="Background-color:#FFFFFF;"&gt;Note &lt;/font&gt;&lt;font style="color:#000000;"&gt;1. Description of Business, Basis of Presentation and Summary of Significant Accounting Policies&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Description of Business&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Arcturus Therapeutics Holdings Inc. (the &amp;#8220;Company&amp;#8221;) is a clinical-stage messenger RNA medicines company focused on&lt;font style="color:#000000;"&gt; the development of infectious disease vaccines utilizing our Self-Transcribing and Replicating RNA (&amp;#8220;STARR&amp;#8221;) technology and significant opportunities in liver and respiratory rare diseases. In addition to the Company&amp;#8217;s internal messenger RNA (&amp;#8220;mRNA&amp;#8221;) platform, its proprietary lipid nanoparticle delivery system, LUNAR, may enable multiple nucleic acid medicines.&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In April 2020, the Company&amp;nbsp;&amp;nbsp;became a clinical stage Company when it announced that its Investigational New Drug (&amp;#8220;IND&amp;#8221;) application for a Phase 1b study in patients with ornithine transcarbamylase (&amp;#8220;OTC&amp;#8221;) deficiency was deemed allowed to proceed by the&amp;#160;U.S. Food and Drug Administration&amp;#160;(&amp;#8220;FDA&amp;#8221;), and an additional Clinical Trial Application&amp;#160;(&amp;#8220;CTA&amp;#8221;) for a Phase 1 study in healthy volunteers was approved by the&amp;#160;New Zealand Medicines and Medical Devices Safety Authority.&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In March 2020, the Company was awarded a grant (the &amp;#8220;Grant&amp;#8221;) from the Singapore Economic Development Board to support the co-development of a potential COVID-19 vaccine with the Duke-NUS Medical School. The grant provides for up to S$14.0 million (approximately US$10 million using the exchange rate on the date the grant was awarded) in grants to support the development of the vaccine.&amp;#160;A portion of the Grant will be paid by the Economic Development Board in advance and the remainder of the Grant will be paid to the Company upon the achievement of certain milestones related to the progress of the development of the vaccine, as set forth in the award agreement. The Company has agreed to pay Duke-NUS Medical School a royalty based on annual net sales of the vaccine in markets or jurisdictions outside of Singapore.&lt;font style="color:#000000;"&gt; &lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Basis of Presentation&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The financial statements for periods prior to &lt;font style="color:#000000;"&gt;June 17, 2019&lt;/font&gt;, the effective date of the Company&amp;#8217;s Redomiciliation to the United States (as described in our annual report on Form 10-K for the year ended December 31, 2019), relate to our predecessor, &lt;font style="color:#000000;"&gt;Arcturus Therapeutics Ltd., &lt;/font&gt;and for the periods from and after June 17, 2019 relate to Arcturus Therapeutics Holdings Inc. Unless stated otherwise or the context otherwise requires, references to the &amp;#8220;Company,&amp;#8221; &amp;#8220;Arcturus,&amp;#8221; &amp;#8220;we,&amp;#8221; &amp;#8220;our&amp;#8221; and &amp;#8220;us&amp;#8221; mean Arcturus Therapeutics Holdings Inc. and its consolidated subsidiaries from and after the effective time of the Redomiciliation and, prior to that time &lt;font style="color:#000000;"&gt;Arcturus Therapeutics Ltd&lt;/font&gt;.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The accompanying condensed consolidated financial statements include the accounts of Arcturus Therapeutics Holdings Inc. and its subsidiaries and are unaudited. All intercompany accounts and transactions have been eliminated in consolidation. These condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (&amp;#8220;GAAP&amp;#8221;) for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In management&amp;#8217;s opinion, the accompanying condensed consolidated financial statements reflect all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation of the results for the interim periods presented. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Interim financial results are not necessarily indicative of results anticipated for the full year. These condensed consolidated financial statements should be read in conjunction with the audited financial statements and footnotes included in the Company&amp;#8217;s Annual Report on Form 10-K for the year ended&amp;#160;December&amp;#160;31, 2019.&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;These condensed consolidated financial statements are prepared in accordance with GAAP, which requires management to make estimates and assumptions regarding the &lt;font style="color:#000000;"&gt;valuation of certain debt and equity instruments, the &lt;/font&gt;equity-method investment, share-based compensation, accruals for liabilities, deferred revenue, expense accruals, and other matters&amp;#160;that affect the reported amounts of assets and liabilities and &lt;font style="color:#000000;"&gt;disclosure of contingent assets and liabilities at the date of the financial statements and &lt;/font&gt;the reported amounts of revenues and expenses during the reporting periods.&amp;#160;&amp;#160;Although these estimates are based on management&amp;#8217;s knowledge of current events and actions the Company may undertake in the future, actual results may ultimately differ from these estimates and assumptions.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Liquidity&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company&amp;#8217;s activities since inception have consisted principally of performing research and development activities, general and administration activities, and raising capital. The Company&amp;#8217;s activities are subject to significant risks and uncertainties, including failing to secure additional funding before the Company achieves sustainable revenues and profit from operations. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company is a clinical-stage bioscience company that is dependent on obtaining external equity and debt financings to fund its operations. Historically, the Company&amp;#8217;s primary sources of financing have been through the sale of its securities, through issuance of debt and through collaboration agreements. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;As mentioned above, the Company was recently awarded a grant from the Singapore Economic Development Board of up to $10.0 million to support the co-development of a potential COVID-19 vaccine with the Duke-NUS Medical School, approximately $5.0 million of which was awarded during the quarter ended March 31, 2020 and subsequently received in April 2020. Additionally, in April 2020 the Company completed an underwritten public offering of 4,735,297 shares of common stock (including the underwriters&amp;#8217; overallotment option) at a price of $17.00 per share. The Company received net proceeds of approximately $75.5 million in the offering.&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In March 2020, the Company entered into an at-the-market Sales Agreement with Stifel, Nicolaus &amp;amp; Company, Incorporated (the &amp;#8220;ATM&amp;#8221;). The ATM was terminated simultaneously with the consummation of the underwritten public offering in April 2020. &lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Segment Information &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision-maker in making decisions regarding resource allocation and assessing performance. The Company and its chief operating decision-maker view the Company&amp;#8217;s operations and manage its business in one operating segment, which is the research and development of medical applications for the Company&amp;#8217;s nucleic acid-focused technology.&lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Revenue Recognition&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Effective January 1, 2019, the Company adopted &lt;font style="font-style:italic;color:#000000;"&gt;Accounting Standards Update (&amp;#8220;ASU&amp;#8221;) 2014-09, Revenue from Contracts with Customers (Topic 606)&lt;/font&gt;&lt;font style="color:#000000;"&gt; (&amp;#8220;Topic 606&amp;#8221;), &lt;/font&gt;using the modified retrospective transition method. Topic 606 provides a unified model to determine how revenue is recognized and the Company applied the standard to collaborative research and technology agreements that were in progress as of the effective date, January 1, 2019. The Company determines revenue recognition for arrangements within the scope of Topic 606 by performing the following five steps: (i) identify the contract; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when, or as, the company satisfies a performance obligation.&amp;#160;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The terms of the Company&amp;#8217;s collaborative research and development agreements include license fees, upfront payments, milestone payments, and reimbursement for research and development activities, option exercise fees, and royalties on sales of commercialized products. Arrangements that include upfront payments are recorded as deferred revenue upon receipt or when due and may require deferral of revenue recognition to a future period until the Company performs obligations under these arrangements. The event-based milestone payments represent variable consideration, and the Company uses the most likely amount method to estimate this variable consideration because the Company will either receive the milestone payment or will not, which makes the potential milestone payment a binary event. The most likely amount method requires the Company to determine the likelihood of earning the milestone payment. Given the high degree of uncertainty around achievement of these milestones, the Company determines the milestone amounts to be fully constrained and does not recognize revenue until the uncertainty associated with these payments is resolved. The Company will recognize revenue from sales-based royalty payments when or as the sales occur. The Company will re-evaluate the transaction price in each reporting period as uncertain events are resolved and other changes in circumstances occur.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;A performance obligation is a promise in a contract to transfer a distinct good or service to the collaborative partner and is the unit of account in Topic 606. A contract&amp;#8217;s transaction price is allocated to each distinct performance obligation based on relative standalone selling price and recognized as revenue when, or as, the performance obligation is satisfied. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;See &lt;font style="font-style:italic;"&gt;&amp;#8220;Note 2, Collaboration Revenue&amp;#8221;&lt;/font&gt; for specific details surrounding the Company&amp;#8217;s collaboration arrangements. &lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Leases&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In &lt;font style="color:#000000;"&gt;February 2016, the FASB issued ASU 2016-02,&amp;#160;Leases (Topic 842), which requires lessees to recognize most leases on the balance sheet as lease liabilities with corresponding right-of-use assets and to disclose key information about leasing arrangements. The Company adopted Topic 842 on its effective date in the first quarter of 2019 using a modified retrospective approach. The Company elected the available package of practical expedients upon adoption, which allowed it to carry forward historical assessments of whether existing agreements contained a lease and the classification of existing operating leases.&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;See &lt;font style="font-style:italic;"&gt;&amp;#8220;Note 8, Commitments and Contingences&amp;#8221;&lt;/font&gt; for specific details surrounding the Company&amp;#8217;s leases.&lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Research and Development, Net &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Research and development costs are expensed as incurred. These expenses result from the Company&amp;#8217;s independent research and development efforts as well as efforts associated with collaboration arrangements. Research and development costs include salaries and personnel-related costs, consulting fees, fees paid for contract research and manufacturing services, the costs of laboratory supplies, equipment and facilities, preclinical studies and other external costs are shown net of any grants.&lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Statement of Cash Flows&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the condensed consolidated balance sheet to the total of the same such amounts shown in the condensed consolidated statement of cash flows:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.72%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Cash and cash equivalents&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.34%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;59,471&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.58%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;31,220&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Non-current restricted cash&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;107&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;107&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total cash, cash equivalents and restricted&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&amp;nbsp; cash shown in the statement of cash flows&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;59,578&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;31,327&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/div&gt;
&lt;p style="margin-bottom:0pt;margin-top:8pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Net Loss per Share&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Basic net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding for the period, without consideration for common stock equivalents. Diluted net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock and dilutive common stock equivalents outstanding for the period determined using the treas&lt;font style="color:#000000;"&gt;ury-stock method. Dilutive shares of common stock are comprised of stock options.&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;No dividends were declared or paid during the reported periods.&lt;/p&gt;</us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock>
  <us-gaap:CollaborativeArrangementDisclosureTextBlock id="F_000172" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;&lt;font style="Background-color:#FFFFFF;"&gt;Note &lt;/font&gt;&lt;font style="color:#000000;"&gt;2. Collaboration Revenue&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company has entered into license agreements and collaborative research and development arrangements with pharmaceutical and biotechnology companies. Under these arrangements, the Company is entitled to receive license fees, upfront payments, milestone payments if and when certain research and development milestones or technology transfer milestones are achieved, royalties on approved product sales and reimbursement for research and development activities. The Company&amp;#8217;s costs of performing these services are included within research and development expenses. The Company&amp;#8217;s milestone payments are typically defined by achievement of certain preclinical, clinical, and commercial success criteria. Preclinical milestones may include in vivo proof of concept in disease animal models, lead candidate identification, and completion of IND-enabling toxicology studies. Clinical milestones may, for example, include successful enrollment of the first patient in or completion of Phase I, II, and III clinical trials, and commercial milestones are often tiered based on net or aggregate sale amounts. The Company cannot guarantee the achievement of these milestones due to risks associated with preclinical and clinical activities required for development of nucleic acid medicine-based therapeutics.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The following table presents changes during the three months ended March 31, 2020 in the balances of contract assets, including receivables from collaborative partners, and contract liabilities, including deferred revenue, as compared to what was disclosed in the Company&amp;#8217;s Annual Report.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:21.56%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Contract Assets&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;BALANCE - December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,179&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Additions for revenue recognized from billings&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;978&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Deductions for cash collections&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(806&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;BALANCE &amp;#8211; March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,351&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;(in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:21.56%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Contract Liabilities&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;BALANCE - December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;23,579&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Additions for advanced billings&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;978&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Deductions for promised goods/services provided in current period&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(2,646&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;BALANCE &amp;#8211; March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;21,911&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The following table summarizes the Company&amp;#8217;s collaboration revenues for the periods indicated (in thousands).&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:59.82%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="6" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:36.26%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;For the Three Months&lt;/p&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Ended March&amp;#160;31,&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.32%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:59.82%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;(Dollars in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.84%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.84%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.32%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:59.82%; border-top:solid 0.75pt #000000;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Collaboration Partner &amp;#8211; Janssen&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;897&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;513&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.32%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:59.82%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Collaboration Partner &amp;#8211; Ultragenyx&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;911&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,388&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.32%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:59.82%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Collaboration Partner &amp;#8211; CureVac&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;309&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,894&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.32%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:59.82%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Collaboration Partner &amp;#8211; Takeda and other&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;529&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;555&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.32%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:59.82%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total collaboration revenue&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,646&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,350&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.32%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The following paragraphs provide information regarding the nature and purpose of the Company&amp;#8217;s most significant collaboration arrangements.&lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;"&gt;&lt;font style="text-decoration:underline;"&gt;Collaboration Partner &amp;#8211; Janssen&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In October 2017, the Company entered into a research collaboration and license agreement with Janssen (the &amp;#8220;2017 Agreement&amp;#8221;). &lt;font style="color:#000000;"&gt;The 2017 Agreement allocated discovery, development, funding obligations, and ownership of related intellectual&amp;#160;property among the Company and Janssen Pharmaceuticals, Inc. (&amp;#8220;Janssen&amp;#8221;). The Company received an upfront payment of $7.7 million and may receive preclinical, development and sales milestone payments of $56.5 million, as well as royalty payments on any future licensed product sales. Janssen began reimbursing the Company for research costs during the first quarter of 2019 upon the completion of the first of three research periods. Janssen may also pay option exercise fees within the $1.0 million to $5.0 million range per target.&amp;#160; Janssen will pay royalties on annual net sales of licensed products in the low to mid-single digits range, subject to reduction on a country-by-country and licensed-product-by-licensed-product basis and subject to certain events, such as expiration of program patents. In addition, the 2017 Agreement includes an exclusivity period.&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In evaluating the 2017 Agreement&amp;#160;in accordance with ASC Topic 606, the Company concluded that the contract counterparty, Janssen, is a customer. The Company identified the following promised goods/services as of the inception of the Agreement: (i) research services, (ii) license to use Arcturus technology and (iii) participation in the Joint Research Committee. The Company concluded that the promised goods/services are incapable of being distinct and consequently do not have any value on a standalone basis. Accordingly, they are determined to represent a single performance obligation. The Company concluded that Janssen&amp;#8217;s options to select additional collaboration targets and to license rights to selected targets are not priced at a discount and therefore do not represent performance obligations for which the transaction price would be allocated.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;As of March&amp;#160;31, 2020, the remaining transaction price, consisting of upfront consideration received and budgeted reimbursable out-of-pocket costs, is expected to be recognized using an input method over the remaining research period of 30 months. None of the development and commercialization milestones were included in the transaction price, as all milestone amounts were not estimated to be met, are outside the control of the Company and contingent upon success in future clinical trials and the collaborator&amp;#8217;s efforts. Any consideration related to sales-based royalties will be recognized when the related sales occur, provided that the reported sales are reliably measurable, and the Company has no remaining promised goods/services, as such sales were determined to relate predominantly to the license granted to Janssen and therefore have also been excluded from the transaction price.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total deferred revenue as of March 31, 2020 and December 31, 2019 for Janssen was $5.9 million.&lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;"&gt;&lt;font style="text-decoration:underline;"&gt;Collaboration Partner &amp;#8211; Ultragenyx&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In October 2015 the Company entered into a research collaboration and license agreement with Ultragenyx (the &amp;#8220;Ultragenyx Agreement&amp;#8221;), whereby Arcturus granted to Ultragenyx a co-exclusive license under Arcturus technology and shall be in effect only during the reserve target exclusivity term as discussed in the following paragraphs. This collaboration agreement was amended in 2017, 2018 and during the second quarter of 2019. During the initial phase of the collaboration, the Company will design and optimize therapeutics for certain rare disease targets. Ultragenyx has the option under the Ultragenyx Agreement to add additional rare disease targets during the collaborative development period.&amp;#160;Additionally, during the collaborative development period, the Company will participate with Ultragenyx in a joint steering committee. The Ultragenyx Agreement also includes an initial exclusivity period with an option to extend this period.&amp;#160;&amp;#160;&amp;#160;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;As part of the Ultragenyx Agreement and related amendments, Ultragenyx has paid $27.9 million &lt;font style="color:#000000;"&gt;in upfront fees, exclusivity extension fees and additional consideration. Ultragenyx also reimburses the Company for all internal and external development costs incurred, pursuant to the Ultragenyx Agreement, is required to make additional payments upon exercise of the Ultragenyx expansion option or exclusivity extension (if any) and if Ultragenyx achieves certain, clinical, regulatory and sales milestones, then the Company is eligible to receive royalty payments&lt;/font&gt;. For each development target for which Ultragenyx exercises its option, Ultragenyx will pay the Company a one-time option exercise fee that increases based upon the number of development targets selected by Ultragenyx from &lt;font style="color:#000000;"&gt;$0.5 million to $1.5 million.&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The current potential development, regulatory and commercial milestone payments for the existing development targets as of March&amp;#160;31, 2020 are $138.0 million. Ultragenyx will pay royalties as a single-digit percentage of net sales on a product-by-product and country-by-country basis during the applicable royalty term. As of March&amp;#160;31, 2020, Ultragenyx has not yet reached the clinical phase of the contract. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;On June 18, 2019, Arcturus and Ultragenyx amended the collaboration agreement for a third time (&amp;#8220;Amendment 3&amp;#8221;). As part of Amendment 3, the total number of targets was increased from 10 to 12, and reserve targets will be exclusively reserved for Ultragenyx with no fees for four years after execution of the amendment. An equity component was also added as part of Amendment 3 wherein Ultragenyx purchased 2.4 million shares of common stock at a premium price. Along with the equity purchase, Ultragenyx received the option to purchase 0.6 million additional shares of common stock at $16 per share within two years of executing the amendment (Note 6).&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The consideration received from Ultragenyx as a result of Amendment 3 was equal to $30.0 million and was comprised of a $24.0 million common stock purchase and a $6.0 million upfront payment. Specifically for Amendment 3, management determined the transaction price to be $14.4 million. See further discussion below regarding determining the transaction price. Management determined the fair value of the premium received by using the opening stock price subsequent to execution of Amendment 3 and applying a lack of marketability discount as the shares received by Ultragenyx are restricted for up to two years (subject to reduction upon the exercise of the option).&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In evaluating the Ultragenyx agreement in accordance with ASC Topic 606, the Company concluded that the contract counterparty, Ultragenyx, is a customer. The Company has identified the following promised goods/services as part of the initial agreement and subsequent amendments: (i) research services, (ii) license to use Arcturus technology, (iii) exclusivity and (iv) participation in the Joint Steering Committee. The Company concluded that the promised goods/services are incapable of being distinct and consequently do not have any value on a standalone basis. Accordingly, they are determined to represent a single performance obligation. The Company concluded that Ultragenyx&amp;#8217;s options to extend exclusivity and options to select additional collaboration targets and to license rights to selected targets are not priced at a discount and therefore do not represent performance obligations for which the transaction price would be allocated.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;At March 31, 2020, the transaction price included the upfront consideration received, exclusivity extension payments and additional consideration received pursuant to Amendment 3. The Company recognizes the reimbursement of labor and expenses as costs are incurred and none of the development and commercialization milestones were included in the transaction price, as all milestone amounts were fully constrained. As part of its evaluation of the constraint, the Company considered numerous factors, including that the consideration is outside the control of the Company and contingent upon success in future clinical trials, approval from the Food and Drug Administration and the collaborator&amp;#8217;s efforts. Any consideration related to sales-based royalties will be recognized when the related sales occur as they are constrained, provided that the reported sales are reliably measurable and the Company has no remaining promised goods/services, as such sales were determined to relate predominantly to the license granted to Ultragenyx and therefore have also been excluded from the transaction price. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Amendment 3 was deemed a contract modification and accounted for as part of the original Ultragenyx Agreement and the Company recorded a cumulative catch-up adjustment of $1.1 million on the modification date. The transaction price will be recognized to revenue on a straight-line basis using an input method over the 4-year reserve target exclusivity period. The reserve target exclusivity period represents the timing over which &lt;font style="color:#000000;"&gt;promised goods/services&lt;/font&gt; will be provided. Total deferred revenue as of March&amp;#160;31, 2020 and December&amp;#160;31, 2019 from Ultragenyx was $11.8 million and $12.7 million, respectively.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:0%;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;"&gt;&lt;font style="text-decoration:underline;"&gt;Collaboration Partner &amp;#8211; CureVac&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In&amp;#160;January 2018, the Company entered into a Development and Option Agreement with CureVac, (the &amp;#8220;Development and Option Agreement&amp;#8221;). Under the terms of the Development and Option Agreement, the parties agreed to conduct joint preclinical development programs once CureVac makes a payment to pull down a target on the basis of which CureVac is granted options for taking a license on pre-agreed license terms to develop and commercialize certain products incorporating the Company&amp;#8217;s patents and know-how related to delivery technology (the LUNAR&amp;#160;platform) (the &amp;#8220;Arcturus Delivery Technology&amp;#8221;), and CureVac patents and know-how related to mRNA technology.&amp;#160;Subject to certain restrictions, the parties will have an undivided one-half interest in the patents and know-how developed jointly by the parties during the course of the Development and Option Agreement.&amp;#160;&amp;#160;Pursuant to the terms of the Development and Option Agreement, CureVac will have a number of target options to co-develop from a reserved target list to enter into licenses under the Arcturus Delivery Technology with respect to the development, manufacture and commercialization of licensed products (which can include products identified for development by the Company, unless the Company is permitted by the terms of the Development and Option Agreement to place such products on a restricted list). A separate notice and fee will be required for each license agreement. If the target to which the license agreement relates is chosen by the parties for co-development under the Co-Development Agreement (as defined below and discussed in the following paragraph) the license agreement will terminate as such programs will be covered under the Co-Development Agreement discussed below, and therefore CureVac will be given a credit for any exercise fees, milestone payments already paid and all other payments made in relation to the license agreement towards future such payments incurred with respect to future licenses under the Arcturus Delivery Technology. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Prior to expiration of the initial term of 8 years (which was subsequently amended, as discussed below), the Agreement also includes an option to extend the term on an annual basis for up to 3 years, subject to payment by CureVac to Arcturus of a non-refundable annual extension fee. The agreement included potential milestone payments for selected targets from CureVac to the Company. The current potential milestone payments for the remaining targets as of March&amp;#160;31, 2020 is $14.0 million for rare disease targets and $23.0 million for non-rare disease targets. CureVac will pay royalties as a percentage of net sales on a product-by-product and country-by-country basis during the applicable royalty term in the low single-digit range. As of March&amp;#160;31, 2020, CureVac has not yet reached the clinical phase of the contract. Pursuant to a May 2018 amendment to the Development and Option Agreement (as amended and restated on September 28, 2018), the Company increased the number of targets available to CureVac under the Development and Option Agreement and agreed upon the license forms to be executed upon selection of the targets by CureVac.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Concurrently with&amp;#160;the Development and Option Agreement, the Company entered into a Co-Development and Co-Commercialization Agreement (the &amp;#8220;Co-Development Agreement&amp;#8221;) which the Company considered a combined contract with the Development and Option Agreement for purposes of revenue recognition. However, on February 11, 2019, the Company announced the termination of the obligations of CureVac for the preclinical development of ARCT-810, effective as of August 4, 2019 and the re-assumption by the Company of the worldwide rights thereto.&lt;font style="color:#000000;"&gt;&amp;#160;As a result, &lt;/font&gt;Arcturus reassumed 100% global rights for clinical development candidate ARCT-810, a messenger RNA (mRNA) drug to treat ornithine transcarbamylase deficiency. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;On July 26, 2019, the Company entered into an amendment (&amp;#8220;CureVac Amendment&amp;#8221;) to its Development and Option Agreement with CureVac (as amended, the &amp;#8220;Development and Option Agreement&amp;#8221;), pursuant to which the Company and CureVac agreed to shorten the time period during which CureVac may select potential targets to be licensed from the Company from eight years to four years, and to reduce the overall number of maximum targets to be reserved and licensed. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In connection with the July 2019 CureVac Amendment, the Company and CureVac also entered into a Termination Agreement (the &amp;#8220;Termination Agreement&amp;#8221;) terminating the January 1, 2018 Co-Development Agreement between the Company and CureVac. Pursuant to the Termination Agreement CureVac agreed to make a one-time payment to Arcturus in the amount of $4.0 million, which was made in July 2019.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In evaluating the CureVac Development and Option Agreement and Co-Development Agreement in accordance with ASC Topic 606, the Company concluded that the contract counterparty, CureVac, is a customer. The Company has identified the following promised goods/services as part of the initial agreement with CureVac and subsequent amendments: (i) research services, (ii) license to use Arcturus technology, (iii) exclusivity and (iv) participation in the Joint Steering Committee. The Company concluded that the promised goods/services are &lt;font style="color:#000000;"&gt;incapable of being distinct&lt;/font&gt; and consequently do not have any value on a standalone basis. Accordingly, they are determined to represent a single performance obligation. The Company concluded that CureVac&amp;#8217;s options to extend the research term and options to select additional collaboration targets and to license rights to selected targets are not priced at a discount and therefore do not represent performance obligations for which the transaction price would be allocated.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;At March 31, 2020, the transaction price included the upfront consideration received. The Company recognizes the reimbursement of labor and expenses as costs are incurred and none of the development and commercialization milestones were included in the transaction price, as all milestone amounts were fully constrained. As part of its evaluation of the constraint, the Company considered numerous factors, including that receipt of the milestones is outside the control of the Company and contingent upon success in future clinical trials and the collaborator&amp;#8217;s efforts. Any consideration related to sales-based royalties will be recognized when the related sales occur as they are constrained, provided that the reported sales are reliably measurable and the Company has no remaining promised goods/services, as such sales were determined to relate predominantly to the license granted to CureVac and therefore have also been excluded from the transaction price. For the three months ended March 31, 2020, no adjustments were made to the transaction price. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The upfront consideration of $5.0 million was recorded as deferred revenue in the Company&amp;#8217;s balance sheet upon receipt and is currently being recognized as revenue on a straight-line basis using an input method over the amended forty-six month contractual term as of March 31, 2020. As a result of Amendment 3, the Company recorded a cumulative catch up adjustment of $0.4 million on the modification date, July 26, 2019. Total deferred revenue as of March&amp;#160;31, 2020 and December&amp;#160;31, 2019 for CureVac was $3.0 million and $3.2 million, respectively.&lt;font style="color:#000000;"&gt; No adjustment was necessary upon adoption of Topic 606&lt;/font&gt;.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:0%;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;"&gt;&lt;font style="text-decoration:underline;"&gt;Other Collaboration Revenue&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The remaining revenue from smaller collaboration agreements relates to the agreement with Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceutical Company Limited (&amp;#8220;Takeda&amp;#8221;). Under the agreement with Takeda, the Company recognized $0.5 million related to amortization of an upfront payment during the first quarter of 2020 related to research and development activities. The current agreement was entered into on March 18, 2019 and is expected to be completed by the end of 2020.&lt;/p&gt;</us-gaap:CollaborativeArrangementDisclosureTextBlock>
  <us-gaap:FairValueDisclosuresTextBlock id="F_000173" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Note 3. Fair Value Measurements&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company establishes the fair value of its assets and liabilities using the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company establishes a fair value hierarchy based on the inputs used to measure fair value.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The three levels of the fair value hierarchy are as follows:&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;margin-left:4.54%;text-indent:0%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Level 1:&amp;#160;&amp;#160;Quoted prices in active markets for identical assets or liabilities.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;margin-left:4.54%;text-indent:0%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Level 2:&amp;#160;&amp;#160;Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;margin-left:4.54%;text-indent:0%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Level 3:&amp;#160;&amp;#160;Unobservable inputs in which little or no market data exists and are therefore determined using estimates and assumptions developed by the Company, which reflect those that a market participant would use.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The carrying value of cash, restricted cash, accounts receivable, accounts payable, and accrued liabilities approximate their respective fair values due to their relative short maturities. &lt;font style="color:#000000;"&gt;The carrying amounts of long-term debt for the amount drawn on the Company&amp;#8217;s debt facility approximates fair value as the interest rate is variable and reflects current market rates.&lt;/font&gt;&amp;#160;&lt;font style="font-size:11pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;As of March&amp;#160;31, 2020 and December&amp;#160;31, 2019, all assets measured at fair value on a recurring basis consisted of cash equivalents and money market funds, which were classified within Level 1 of the fair value hierarchy. The fair value of these financial instruments was measured based on quoted prices.&lt;/p&gt;</us-gaap:FairValueDisclosuresTextBlock>
  <us-gaap:SupplementalBalanceSheetDisclosuresTextBlock id="F_000174" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;&lt;font style="Background-color:#FFFFFF;"&gt;Note 4&lt;/font&gt;. Balance Sheet Details&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Prepaid expenses and other current assets consisted of the following as of March&amp;#160;31, 2020 and December&amp;#160;31, 2019:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Prepaid expenses&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,344&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;720&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Other current assets&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;593&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;38&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,937&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;758&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Property and equipment, net for the same periods consisted of the following:&lt;/p&gt;
&lt;p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Research equipment&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,045&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;3,658&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Computers and software&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;271&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;271&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Office equipment and furniture&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;574&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;561&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Leasehold improvements&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;44&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;40&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,934&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,530&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Less accumulated depreciation and amortization&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(2,363&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(2,181&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Property and equipment, net&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,571&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,349&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Depreciation and amortization expense was $0.2&lt;font style="color:#000000;"&gt;&amp;#160;million and $0.2 million &lt;/font&gt;for the three months ended March 31, 2020 and 2019, respectively.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Accrued liabilities consisted of the following as of March&amp;#160;31, 2020 and December&amp;#160;31, 2019:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Accrued compensation&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,635&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,608&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Cystic Fibrosis Foundation Liability (Note 9)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,921&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,949&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Current portion of operating lease liability&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,474&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;827&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Other accrued research and development expenses&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,745&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,750&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;9,775&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;7,134&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;</us-gaap:SupplementalBalanceSheetDisclosuresTextBlock>
  <us-gaap:DebtDisclosureTextBlock id="F_000175" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Note 5. Debt&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;"&gt;Long-term debt with Western Alliance Bank&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;On October 12, 2018, the Company entered into a Loan and Security Agreement with Western Alliance Bank (the &amp;#8220;Bank&amp;#8221;), whereby the Company received $10.0 million under a long-term debt agreement (the &amp;#8220;Loan&amp;#8221;).&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Loan is collateralized by all of the assets of the Company, excluding intellectual property, which is subject to a negative pledge. The Loan contains customary conditions of borrowing, events of default and covenants, including covenants that restrict the Company&amp;#8217;s ability to dispose of assets, merge with or acquire other entities, incur indebtedness and make distributions to holders of the Company&amp;#8217;s capital stock. In addition, the Company is required to maintain at least 100% of its consolidated, unrestricted cash, or $15 million, whichever is lower, with the Bank.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;On October 30, 2019,&amp;#160;the Company&amp;#160;and&amp;#160;the&amp;#160;Bank entered into a Third Amendment&amp;#160;(the &amp;#8220;Third Amendment&amp;#8221;)&amp;#160;to the Loan and Security Agreement dated as of October 12, 2018 (as amended,&amp;#160;the &amp;#8220;Loan&amp;#160;Agreement&amp;#8221;).&amp;#160;&amp;#160;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Pursuant to the amendment, the Bank agreed to make a term loan to the Company on October 30, 2019, in the amount of $15 million (the &amp;#8220;Term Loan&amp;#8221;). The resulting net increase in the indebtedness of the Company was $5.0 million. The Term Loan bears interest at a floating rate ranging from 1.25% to 2.75% above the prime rate. The amendment further provides that the Term Loan has a maturity date of October 30, 2023.&amp;#160;The Company shall make monthly payments of interest only until the interest-only end date of October 1, 2021.&amp;#160;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company paid a loan origination fee of $54,000 which was recorded as a debt discount along with the remaining loan origination fee from the Loan and is being accreted over the term of the Term Loan. In addition, the Company is required to pay a fee of $525,000 upon certain change of control events.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Term Loan may be prepaid in full at any time, provided that a prepayment fee is required to be paid by the Company upon prepayment.&amp;#160;The prepayment fee ranges from 0.50% to 2.00% of the prepaid principal amount depending upon the date on which the prepayment is made. In connection with the Third Amendment, the Company guaranteed the obligations under the Loan Agreement and pledged substantially all of its assets as security under the Loan Agreement.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Term Loan also includes covenants which includes the Company&amp;#8217;s submission of a clinical candidate for IND application made to the U.S. Food and Drug Administration by May 31, 2020 and have it accepted by June 30, 2020. This covenant has been satisfied.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Upon maturity or prepayment (as previously discussed), the Company will be required to pay a 2% fee as a result of the FDA&amp;#8217;s approval to proceed with the Company&amp;#8217;s the LUNAR-OTC (ARCT-810) program based on its IND submission. Such fee is accreted to the debt balance using the effective interest method over the term of the Loan Agreement.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Should an event of default occur, including the occurrence of a material adverse effect,&amp;#160;the Company&amp;#160;could be liable for immediate repayment of all obligations under the Loan Agreement. As of March 31, 2020, the Company was in compliance with all covenants under the Loan Agreement.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Principal payments,&amp;#160;including the final&amp;#160;payment due at repayment,&amp;#160;on the&amp;#160;long-term debt for fiscal years 2021, 2022 and 2023 are $4.0 million, $6.0 million and $5.5 million, respectively, with no principal payments due in 2020.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company recognized interest expense related to its long-term debt of $0.3 million and $0.2 million during the three months ended March 31, 2020 and 2019, respectively. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;"&gt;&amp;nbsp;&lt;/p&gt;</us-gaap:DebtDisclosureTextBlock>
  <us-gaap:StockholdersEquityNoteDisclosureTextBlock id="F_000176" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Note 6. Stockholders&amp;#8217; Equity&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Restricted Common Shares&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In March 2013, the founders of the Company purchased 2,783,686 shares of common stock for $0.0068 per share. Of the shares purchased, 1,538,353 were subject to a repurchase option whereby the Company has an option for two months after date of termination of service to repurchase any or all of the unvested shares at the original purchase price per share. The repurchase option shall be deemed to be automatically exercised by the Company as of the end of the two-month period unless the Company notifies the purchaser that it does not intend to exercise its option. The shares will be vested (1) 25% after obtaining suitable siRNA license; (2) 25% after&amp;#160;&lt;font style="font-style:italic;"&gt;in vivo&lt;/font&gt;&amp;#160;proof-of-concept achieved; (3) 25% after a regulatory agency new drug application (such as an Investigational New Drug application) is filed and the study is allowed to proceed by the applicable regulatory agency; and (4) 25% after human biological proof-of-concept is achieved. The Company met the first two milestones during 2013 and 2014 leaving an unvested balance of 769,176 shares. In 2017, the stock purchase agreements were amended to clarify vesting conditions and also to accelerate the vesting of 146,510 shares resulting in a modification expense of $1,495,000. As of March&amp;#160;31, 2020 and 2019, there were &lt;font style="color:#000000;"&gt;622,667&lt;/font&gt; shares of common stock unvested and subject to the repurchase option. The Company met the third milestone during April 2020, and as of May 1, 2020, there were 311,333 shares of common stock currently unvested that are subject to the final repurchase option. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:4.54%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Net Loss per Share&lt;font style="font-size:12pt;font-weight:normal;color:#000000;"&gt;&amp;#160;&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Dilutive securities&lt;font style="color:#000000;"&gt; that were not included in the calculation of diluted net loss per share for the three months ended March&amp;#160;31, 2020 and 2019 as they were anti-dilutive totaled 316,957 and 67,051, respectively. &lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;For the quarters ended March&amp;#160;31, 2020 and 2019, the calculation of the weighted-average number of shares outstanding excludes unvested restricted shares of common stock of 622,667. &lt;/p&gt;</us-gaap:StockholdersEquityNoteDisclosureTextBlock>
  <us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock id="F_000177" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Note 7. Share-Based Compensation&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In August 2018, the Company adopted the 2018 Omnibus Equity Incentive Plan (&amp;#8220;2018 Plan&amp;#8221;). Under the 2018 Plan, the Company was authorized to issue up to a maximum of&lt;font style="color:#000000;"&gt;&amp;#160;&lt;/font&gt;1,100,000 shares of common stock pursuant to the exercise of incentive stock options or other awards provided for therein. In June 2019, the Company adopted the 2019 Omnibus Equity Incentive Plan (&amp;#8220;2019 Plan&amp;#8221;), which was ratified by stockholders at the Company&amp;#8217;s 2019 annual meeting.&amp;#160;Under the 2019 Plan, the Company is authorized to issue up to a maximum of 2,600,000 shares of common stock pursuant to the exercise of incentive stock options or other awards provided for therein.&amp;#160; In connection with the Redomiciliation, all outstanding options to purchase shares in Arcturus Israel under the above described plans were exchanged for an option to purchase the same number of shares of the Company&amp;#8217;s common stock under the 2019 Plan. Accordingly, as of March 31, 2020, a total of 353,332 shares remain available for future issuance under the 2019 Plan, and no further shares will be issued under the 2018 Plan. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:4.54%;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;"&gt;Stock Options&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Share-based compensation expenses included in the Company&amp;#8217;s condensed statements of operations and comprehensive loss for the three months ended March 31, 2020 and 2019 were:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:65.1%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="7" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:31.04%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;For the Three Months&lt;/p&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Ended March&amp;#160;31,&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:65.1%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;(in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:13.34%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:13.34%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:65.1%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt; Research and development&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.42%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;266&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;152&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.42%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:65.1%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt; General and administrative&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;583&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;247&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:65.1%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt; Total&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;849&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;399&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;</us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock>
  <us-gaap:IncomeTaxDisclosureTextBlock id="F_000178" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:8pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Note 8. Income Taxes&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company is subject to taxation in the United States and various states. The Company computes its quarterly income tax provision by using a forecasted annual effective tax rate and adjusts for any discrete items arising during the quarter. The primary difference between the effective tax rate and the federal statutory tax rate relates to the valuation allowances on the Company&amp;#8217;s net operating losses.&amp;#160; No tax benefit was provided for losses incurred in the United States because those losses are offset by a full valuation allowance.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;For the three months ended March 31, 2020, the Company recorded income tax expense of $0 million.&amp;#160; No tax benefit was provided for losses incurred in United States because those losses are offset by a full valuation allowance.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;On March 27, 2020, the United States enacted the Coronavirus Aid, Relief and Economic Security Act (CARES Act).&amp;#160; The Cares Act is an emergency economic stimulus package that includes spending and tax breaks to strengthen the United States economy and fund a nationwide effort to curtail the effect of COVID-19.&amp;#160; While the CARES Act provides sweeping tax changes in response to the COVID-19 pandemic, some of the more significant provisions which are expected to impact the Company&amp;#8217;s financial statements include removal of certain limitations on utilization of net operating losses, increasing the loss carryback period for certain losses to five years, and increasing the ability to deduct interest expense, as well as amending certain provisions of the previously enacted Tax Cuts and Jobs Act. As of the quarter ended March 31, 2020 the Company has estimated that the impact of the CARES Act will be immaterial to its tax position. &amp;#160;Due to the recent enactment of the CARES Act, the Company will continue to analyze the impact that the CARES Act will have in subsequent quarters on its financial position, results of operations or cash flows&lt;font style="color:#000000;font-size:6pt;"&gt;.&lt;/font&gt;&lt;/p&gt;</us-gaap:IncomeTaxDisclosureTextBlock>
  <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock id="F_000179" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Note 9. Commitments and Contingencies &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;"&gt;COVID-19 Vaccine Development&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;On March 4, 2020, the Company was awarded a grant (the &amp;#8220;Grant&amp;#8221;) from the Singapore Economic Development Board to support the co-development of a potential COVID-19 vaccine with the Duke-NUS Medical School. The Grant provides for up to S$14.0 million (approximately US$10 million using the March 2, 2020 exchange rate) in grants to support the development of the vaccine.&amp;#160;A portion of the Grant will be paid by the Economic Development Board in advance and the remainder of the Grant will be paid to the Company upon the achievement of certain milestones related to the progress of the development of the vaccine, as set forth in the award agreement. The funds received will be recognized as contra research and development expense in proportion to the percentage covered by the Economic Development Board of the overall budget. The Company is liable for certain expenses during the program period and any unused funds are required to be repaid upon completion of the program. For the three months ended March 31, 2020, the Company recognized $0.5 million of contra expense.&lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:4.54%;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;"&gt;Cystic Fibrosis Foundation Agreement&lt;/p&gt;
&lt;p style="Background-color:#FFFFFF;margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;On August 1, 2019, the Company amended its Development Program Letter Agreement, dated May 16, 2017 and as amended July 13, 2018, with the Cystic Fibrosis Foundation (&amp;#8220;CFF&amp;#8221;). Pursuant to the amendment, (i) CFF increased the amount it will award to advance LUNAR-CF to $15.0 million from approximately $3.2 million, (ii) the Company will provide $5.0 million in matching funds for remaining budgeted costs and (iii) the related disbursement schedule from CFF to Arcturus was modified such that (a) $4.0 million was disbursed upon execution of the CFF Amendment, (b) $2.0 million will be disbursed within 30 days of the first day of each of January, April, July and October 2020 upon Arcturus invoicing CFF to meet project goals, and (c) the last payment of $3.0 million less the prior award previously paid out, equaling approximately $2.3 million, will be disbursed upon Arcturus Therapeutics, Inc. invoicing CFF to meet good manufacturing practices and opening an Investigational New Drug (&amp;#8220;IND&amp;#8221;) application. The funds received from CFF will be recognized as contra research and development expense in proportion to the percentage covered by CFF of the overall budget. For the three months ended March 31, 2020, the Company recognized $2.0 million of contra expense with $1.9 million remaining in accrued expenses.&lt;/p&gt;
&lt;p style="Background-color:#FFFFFF;margin-top:18pt;margin-bottom:0pt;text-indent:4.54%;font-style:italic;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;"&gt;Leases&lt;/p&gt;
&lt;p style="Background-color:#FFFFFF;margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In October 2017, the Company entered into a non-cancellable operating lease agreement for&amp;#160;office space adjacent to its previously occupied headquarters. The commencement of the lease began in March 2018 and the lease extends for approximately 84 months from the commencement date with a remaining lease term through March 2025. Monthly rental payments are due under the lease and there are escalating rent payments during the term of the lease. The Company is also responsible for its proportional share of operating expenses of the building and common areas. In conjunction with the new lease, the Company received free rent for four months and received a tenant improvement allowance of $74,000. The lease may be extended for one five-year period at the then current market rate with annual escalations; however, the Company deemed the extension option not reasonably certain to be exercised and therefore excluded the option from the lease terms. The Company entered into an irrevocable standby letter of credit with the landlord for a security deposit of $96,000 upon executing the lease which is included (along with additional funds required to secure the letter of credit) in the balance of non-current restricted cash.&lt;/p&gt;
&lt;p style="Background-color:#FFFFFF;margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&lt;font style="Background-color:#FFFFFF;"&gt;In January 2020, the Company entered into a non-cancellable operating lease agreement for&amp;#160;office space near its current headquarters. The commencement of the lease began in February 2020 and the lease extends for 13 months from the commencement date. In conjunction with the new lease, the Company received free rent for one month. The lease may be extended for one twelve-month period; however, the Company deemed the extension option not reasonably certain to be exercised and therefore excluded the option from the lease terms&lt;/font&gt;. &lt;/p&gt;
&lt;p style="Background-color:#FFFFFF;margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Operating lease right-of-use asset and liability on the condensed consolidated balance sheets represent the present value of remaining lease payments over the remaining lease terms. The Company does not allocate lease payments to non-lease components; therefore, payments for common-area-maintenance and administrative services are not included in the operating lease right-of-use asset and liability. The Company uses its incremental borrowing rate to calculate the present value of the lease payments, as the implicit rate in the lease is not readily determinable.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;As of March&amp;#160;31, 2020, the payments of the operating lease liability were as follows:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:21.56%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Remaining Lease Payments&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2020 (remaining)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,489&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2021&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,427&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2022&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,349&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2023&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,390&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2024&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,432&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Thereafter&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;314&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total remaining lease payments&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;7,401&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Less: imputed interest&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(1,298&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total operating lease liabilities&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;6,103&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Weighted-average remaining lease term&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:21.56%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4.7 years&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Weighted-average discount rate&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;8.4&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;%&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;
&lt;p style="Background-color:#FFFFFF;margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;p style="Background-color:#FFFFFF;margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Operating lease costs consist of the fixed lease payments included in operating lease liability and are recorded on a straight-line basis over the lease terms. Operating lease costs were $0.4 million and $0.3 million for the three months ended March 31, 2020 and 2019, respectively.&lt;/p&gt;</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
  <us-gaap:RelatedPartyTransactionsDisclosureTextBlock id="F_000180" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Note 10. Related Party Transactions&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-style:italic;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;"&gt;Ultragenyx&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In June 2019, Arcturus and Ultragenyx executed Amendment 3 to the Ultragenyx Agreement. In addition, as a result of the amended Ultragenyx Agreement, Ultragenyx owns 15.8% of the outstanding common stock of the Company as of March 31, 2020. &lt;font style="color:#000000;"&gt;Pursuant to the amended Ultragenyx Agreement, the Company also granted Ultragenyx a two-year option (the &amp;#8220;Option&amp;#8221;) to purchase up to 600,000 additional shares of common stock at a price of $16.00 per share.&lt;/font&gt; For the three months ended March 31, 2020 and 2019, the Company has recognized revenue of $0.9 million and $1.4 million. As of March 31, 2020 and 2019, the Company held accounts receivable balances of negligible amounts.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:4.54%;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;"&gt;Equity-Method Investment&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In June 2018, the Company completed the sale of its intangible asset related to the ADAIR technology. Pursuant to the asset purchase agreement for ADAIR, the Company received a 30% ownership interest in the common stock of a privately held company in consideration for the sale of the ADAIR technology. The Company has no requirement to invest further in this private company. During the third quarter of 2019, the equity-method investee issued shares of its common stock at a share price greater than the initial investment which resulted in the Company recording a gain in its equity-method investment. The gain has been offset by additional losses incurred by the equity-method investee and calculated on a lag. For the three months ended March 31, 2020, the Company recorded a loss of $0.2 million. Subsequent to the equity-method investee issuing shares of its common stock, the Company&amp;#8217;s ownership was reduced to 19%. As the Company continues to have the ability to exercise significant influence over the operating and financial policies of the investee, the Company will continue to account for the investment as an equity-method investment. &lt;/p&gt;</us-gaap:RelatedPartyTransactionsDisclosureTextBlock>
  <us-gaap:SubsequentEventsTextBlock id="F_000181" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Note 11. Subsequent Events&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;"&gt;Acceptance of Investigational New Drug Application for ARCT-810&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In April 2020, the Company&amp;#8217;s IND application for a Phase 1b study in patients with OTC deficiency was deemed allowed to proceed by the&amp;#160;U.S. Food and Drug Administration, and an additional Clinical Trial Application for a Phase 1 study in healthy volunteers was approved by the&amp;#160;New Zealand Medicines and Medical Devices Safety Authority. &lt;/p&gt;
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:4.54%;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;"&gt;Underwritten Public Offering of Common Stock&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;See discussion of underwritten public offering of common stock at Note 1. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-size:12pt;"&gt;&amp;nbsp;&lt;/p&gt;</us-gaap:SubsequentEventsTextBlock>
  <us-gaap:BasisOfAccountingPolicyPolicyTextBlock id="F_000182" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Basis of Presentation&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The financial statements for periods prior to &lt;font style="color:#000000;"&gt;June 17, 2019&lt;/font&gt;, the effective date of the Company&amp;#8217;s Redomiciliation to the United States (as described in our annual report on Form 10-K for the year ended December 31, 2019), relate to our predecessor, &lt;font style="color:#000000;"&gt;Arcturus Therapeutics Ltd., &lt;/font&gt;and for the periods from and after June 17, 2019 relate to Arcturus Therapeutics Holdings Inc. Unless stated otherwise or the context otherwise requires, references to the &amp;#8220;Company,&amp;#8221; &amp;#8220;Arcturus,&amp;#8221; &amp;#8220;we,&amp;#8221; &amp;#8220;our&amp;#8221; and &amp;#8220;us&amp;#8221; mean Arcturus Therapeutics Holdings Inc. and its consolidated subsidiaries from and after the effective time of the Redomiciliation and, prior to that time &lt;font style="color:#000000;"&gt;Arcturus Therapeutics Ltd&lt;/font&gt;.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The accompanying condensed consolidated financial statements include the accounts of Arcturus Therapeutics Holdings Inc. and its subsidiaries and are unaudited. All intercompany accounts and transactions have been eliminated in consolidation. These condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (&amp;#8220;GAAP&amp;#8221;) for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In management&amp;#8217;s opinion, the accompanying condensed consolidated financial statements reflect all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation of the results for the interim periods presented. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Interim financial results are not necessarily indicative of results anticipated for the full year. These condensed consolidated financial statements should be read in conjunction with the audited financial statements and footnotes included in the Company&amp;#8217;s Annual Report on Form 10-K for the year ended&amp;#160;December&amp;#160;31, 2019.&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;These condensed consolidated financial statements are prepared in accordance with GAAP, which requires management to make estimates and assumptions regarding the &lt;font style="color:#000000;"&gt;valuation of certain debt and equity instruments, the &lt;/font&gt;equity-method investment, share-based compensation, accruals for liabilities, deferred revenue, expense accruals, and other matters&amp;#160;that affect the reported amounts of assets and liabilities and &lt;font style="color:#000000;"&gt;disclosure of contingent assets and liabilities at the date of the financial statements and &lt;/font&gt;the reported amounts of revenues and expenses during the reporting periods.&amp;#160;&amp;#160;Although these estimates are based on management&amp;#8217;s knowledge of current events and actions the Company may undertake in the future, actual results may ultimately differ from these estimates and assumptions.&lt;/p&gt;</us-gaap:BasisOfAccountingPolicyPolicyTextBlock>
  <arct:LiquidityPolicyPolicyTextBlock id="F_000183" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:18pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Liquidity&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company&amp;#8217;s activities since inception have consisted principally of performing research and development activities, general and administration activities, and raising capital. The Company&amp;#8217;s activities are subject to significant risks and uncertainties, including failing to secure additional funding before the Company achieves sustainable revenues and profit from operations. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The Company is a clinical-stage bioscience company that is dependent on obtaining external equity and debt financings to fund its operations. Historically, the Company&amp;#8217;s primary sources of financing have been through the sale of its securities, through issuance of debt and through collaboration agreements. &lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;As mentioned above, the Company was recently awarded a grant from the Singapore Economic Development Board of up to $10.0 million to support the co-development of a potential COVID-19 vaccine with the Duke-NUS Medical School, approximately $5.0 million of which was awarded during the quarter ended March 31, 2020 and subsequently received in April 2020. Additionally, in April 2020 the Company completed an underwritten public offering of 4,735,297 shares of common stock (including the underwriters&amp;#8217; overallotment option) at a price of $17.00 per share. The Company received net proceeds of approximately $75.5 million in the offering.&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In March 2020, the Company entered into an at-the-market Sales Agreement with Stifel, Nicolaus &amp;amp; Company, Incorporated (the &amp;#8220;ATM&amp;#8221;). The ATM was terminated simultaneously with the consummation of the underwritten public offering in April 2020. &lt;/p&gt;</arct:LiquidityPolicyPolicyTextBlock>
  <us-gaap:SegmentReportingPolicyPolicyTextBlock id="F_000184" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Segment Information &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision-maker in making decisions regarding resource allocation and assessing performance. The Company and its chief operating decision-maker view the Company&amp;#8217;s operations and manage its business in one operating segment, which is the research and development of medical applications for the Company&amp;#8217;s nucleic acid-focused technology.&lt;/p&gt;</us-gaap:SegmentReportingPolicyPolicyTextBlock>
  <us-gaap:RevenueRecognitionPolicyTextBlock id="F_000185" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Revenue Recognition&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Effective January 1, 2019, the Company adopted &lt;font style="font-style:italic;color:#000000;"&gt;Accounting Standards Update (&amp;#8220;ASU&amp;#8221;) 2014-09, Revenue from Contracts with Customers (Topic 606)&lt;/font&gt;&lt;font style="color:#000000;"&gt; (&amp;#8220;Topic 606&amp;#8221;), &lt;/font&gt;using the modified retrospective transition method. Topic 606 provides a unified model to determine how revenue is recognized and the Company applied the standard to collaborative research and technology agreements that were in progress as of the effective date, January 1, 2019. The Company determines revenue recognition for arrangements within the scope of Topic 606 by performing the following five steps: (i) identify the contract; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when, or as, the company satisfies a performance obligation.&amp;#160;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The terms of the Company&amp;#8217;s collaborative research and development agreements include license fees, upfront payments, milestone payments, and reimbursement for research and development activities, option exercise fees, and royalties on sales of commercialized products. Arrangements that include upfront payments are recorded as deferred revenue upon receipt or when due and may require deferral of revenue recognition to a future period until the Company performs obligations under these arrangements. The event-based milestone payments represent variable consideration, and the Company uses the most likely amount method to estimate this variable consideration because the Company will either receive the milestone payment or will not, which makes the potential milestone payment a binary event. The most likely amount method requires the Company to determine the likelihood of earning the milestone payment. Given the high degree of uncertainty around achievement of these milestones, the Company determines the milestone amounts to be fully constrained and does not recognize revenue until the uncertainty associated with these payments is resolved. The Company will recognize revenue from sales-based royalty payments when or as the sales occur. The Company will re-evaluate the transaction price in each reporting period as uncertain events are resolved and other changes in circumstances occur.&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;A performance obligation is a promise in a contract to transfer a distinct good or service to the collaborative partner and is the unit of account in Topic 606. A contract&amp;#8217;s transaction price is allocated to each distinct performance obligation based on relative standalone selling price and recognized as revenue when, or as, the performance obligation is satisfied. &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;See &lt;font style="font-style:italic;"&gt;&amp;#8220;Note 2, Collaboration Revenue&amp;#8221;&lt;/font&gt; for specific details surrounding the Company&amp;#8217;s collaboration arrangements. &lt;/p&gt;</us-gaap:RevenueRecognitionPolicyTextBlock>
  <us-gaap:LesseeLeasesPolicyTextBlock id="F_000186" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Leases&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;In &lt;font style="color:#000000;"&gt;February 2016, the FASB issued ASU 2016-02,&amp;#160;Leases (Topic 842), which requires lessees to recognize most leases on the balance sheet as lease liabilities with corresponding right-of-use assets and to disclose key information about leasing arrangements. The Company adopted Topic 842 on its effective date in the first quarter of 2019 using a modified retrospective approach. The Company elected the available package of practical expedients upon adoption, which allowed it to carry forward historical assessments of whether existing agreements contained a lease and the classification of existing operating leases.&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;See &lt;font style="font-style:italic;"&gt;&amp;#8220;Note 8, Commitments and Contingences&amp;#8221;&lt;/font&gt; for specific details surrounding the Company&amp;#8217;s leases.&lt;/p&gt;</us-gaap:LesseeLeasesPolicyTextBlock>
  <us-gaap:ResearchAndDevelopmentExpensePolicy id="F_000187" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Research and Development, Net &lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Research and development costs are expensed as incurred. These expenses result from the Company&amp;#8217;s independent research and development efforts as well as efforts associated with collaboration arrangements. Research and development costs include salaries and personnel-related costs, consulting fees, fees paid for contract research and manufacturing services, the costs of laboratory supplies, equipment and facilities, preclinical studies and other external costs are shown net of any grants.&lt;/p&gt;</us-gaap:ResearchAndDevelopmentExpensePolicy>
  <us-gaap:InventoryCashFlowPolicy id="F_000188" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"&gt;Statement of Cash Flows&lt;/p&gt;
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the condensed consolidated balance sheet to the total of the same such amounts shown in the condensed consolidated statement of cash flows:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.72%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Cash and cash equivalents&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.34%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;59,471&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.58%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;31,220&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Non-current restricted cash&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;107&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;107&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total cash, cash equivalents and restricted&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&amp;nbsp; cash shown in the statement of cash flows&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;59,578&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;31,327&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;</us-gaap:InventoryCashFlowPolicy>
  <us-gaap:EarningsPerSharePolicyTextBlock id="F_000189" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:8pt;text-indent:0%;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Net Loss per Share&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Basic net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding for the period, without consideration for common stock equivalents. Diluted net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock and dilutive common stock equivalents outstanding for the period determined using the treas&lt;font style="color:#000000;"&gt;ury-stock method. Dilutive shares of common stock are comprised of stock options.&lt;/font&gt;&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;No dividends were declared or paid during the reported periods.&lt;/p&gt;</us-gaap:EarningsPerSharePolicyTextBlock>
  <us-gaap:ScheduleOfCashAndCashEquivalentsTableTextBlock id="F_000190" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the condensed consolidated balance sheet to the total of the same such amounts shown in the condensed consolidated statement of cash flows:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.72%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Cash and cash equivalents&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.34%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;59,471&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.58%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;31,220&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Non-current restricted cash&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;107&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;107&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.72%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total cash, cash equivalents and restricted&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&amp;nbsp; cash shown in the statement of cash flows&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.34%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;59,578&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.58%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;31,327&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfCashAndCashEquivalentsTableTextBlock>
  <us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock id="F_000191" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The following table presents changes during the three months ended March 31, 2020 in the balances of contract assets, including receivables from collaborative partners, and contract liabilities, including deferred revenue, as compared to what was disclosed in the Company&amp;#8217;s Annual Report.&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:21.56%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Contract Assets&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;BALANCE - December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,179&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Additions for revenue recognized from billings&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;978&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Deductions for cash collections&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(806&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;BALANCE &amp;#8211; March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,351&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;(in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:21.56%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Contract Liabilities&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;BALANCE - December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;23,579&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Additions for advanced billings&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;978&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Deductions for promised goods/services provided in current period&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(2,646&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;BALANCE &amp;#8211; March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;21,911&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;</us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock>
  <arct:ScheduleOfCollaborationRevenueTableTextBlock id="F_000192" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;The following table summarizes the Company&amp;#8217;s collaboration revenues for the periods indicated (in thousands).&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:59.82%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="6" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:36.26%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;For the Three Months&lt;/p&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Ended March&amp;#160;31,&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.32%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:59.82%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;(Dollars in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.84%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.84%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.32%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:59.82%; border-top:solid 0.75pt #000000;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Collaboration Partner &amp;#8211; Janssen&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;897&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;513&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.32%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:59.82%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Collaboration Partner &amp;#8211; Ultragenyx&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;911&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,388&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.32%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:59.82%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Collaboration Partner &amp;#8211; CureVac&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;309&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.56%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,894&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.32%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:59.82%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Collaboration Partner &amp;#8211; Takeda and other&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;529&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;555&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.32%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:59.82%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total collaboration revenue&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,646&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.56%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.84%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,350&lt;/p&gt;&lt;/td&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.32%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:11pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;</arct:ScheduleOfCollaborationRevenueTableTextBlock>
  <arct:ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock id="F_000193" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Prepaid expenses and other current assets consisted of the following as of March&amp;#160;31, 2020 and December&amp;#160;31, 2019:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Prepaid expenses&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,344&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;720&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Other current assets&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;593&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;38&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,937&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;758&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;</arct:ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock>
  <us-gaap:PropertyPlantAndEquipmentTextBlock id="F_000194" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Property and equipment, net for the same periods consisted of the following:&lt;/p&gt;
&lt;p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Research equipment&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,045&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;3,658&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Computers and software&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;271&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;271&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Office equipment and furniture&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;574&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;561&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Leasehold improvements&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;44&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;40&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,934&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,530&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Less accumulated depreciation and amortization&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(2,363&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(2,181&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Property and equipment, net&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,571&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,349&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;</us-gaap:PropertyPlantAndEquipmentTextBlock>
  <us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock id="F_000195" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Accrued liabilities consisted of the following as of March&amp;#160;31, 2020 and December&amp;#160;31, 2019:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:70%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Calibri;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;March&amp;#160;31, 2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:16.66%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;December&amp;#160;31, 2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Accrued compensation&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,635&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,608&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Cystic Fibrosis Foundation Liability (Note 9)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,921&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,949&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.68%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Current portion of operating lease liability&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.36%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,474&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.6%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;827&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="middle" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Other accrued research and development expenses&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4,745&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2,750&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.68%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.36%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;9,775&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.6%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;7,134&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock>
  <us-gaap:ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock id="F_000196" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Share-based compensation expenses included in the Company&amp;#8217;s condensed statements of operations and comprehensive loss for the three months ended March 31, 2020 and 2019 were:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:65.1%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="7" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:31.04%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;For the Three Months&lt;/p&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Ended March&amp;#160;31,&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:65.1%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;(in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:13.34%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;2020&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:13.34%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;2019&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:65.1%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt; Research and development&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.42%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;266&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.66%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;152&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.42%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:65.1%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt; General and administrative&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;583&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;247&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:65.1%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt; Total&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;849&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.66%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:12.34%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;399&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.42%; border-bottom:double 2.5pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock>
  <us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock id="F_000197" contextRef="C_0001768224_20200101_20200331">
&lt;p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;As of March&amp;#160;31, 2020, the payments of the operating lease liability were as follows:&lt;/p&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;"&gt;&amp;nbsp;&lt;/p&gt;
&lt;div&gt;
&lt;table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"&gt;
&lt;tr&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt; (in thousands)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:21.56%; border-bottom:solid 0.75pt #000000;"&gt;
&lt;p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;Remaining Lease Payments&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2020 (remaining)&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,489&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2021&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,427&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2022&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,349&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2023&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,390&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;2024&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;1,432&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Thereafter&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;314&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total remaining lease payments&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;7,401&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:75.48%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Less: imputed interest&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.92%; border-bottom:solid 0.75pt transparent;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-bottom:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;(1,298&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;)&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:6.85pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Total operating lease liabilities&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;$&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%; border-top:solid 0.75pt #000000;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;6,103&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Weighted-average remaining lease term&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:21.56%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;4.7 years&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:75.48%;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;Weighted-average discount rate&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.92%;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:20.56%;white-space:nowrap;"&gt;
&lt;p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;8.4&lt;/p&gt;&lt;/td&gt;
&lt;td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"&gt;
&lt;p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"&gt;%&lt;/p&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;&lt;/div&gt;</us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock>
  <us-gaap:GrantsReceivable id="F_000198" contextRef="C_0001768224_srtRangeAxis_srtMaximumMember_srtStatementGeographicalAxis_countrySG_20200304" decimals="-5" unitRef="U_iso4217SGD">14000000</us-gaap:GrantsReceivable>
  <us-gaap:GrantsReceivable id="F_000199" contextRef="C_0001768224_srtRangeAxis_srtMaximumMember_srtStatementGeographicalAxis_countrySG_20200304" decimals="-5" unitRef="U_iso4217USD">10000000</us-gaap:GrantsReceivable>
  <arct:GrantsReceivedFromGovernment id="F_000200" contextRef="C_0001768224_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_20200401_20200430" decimals="-5" unitRef="U_iso4217USD">5000000</arct:GrantsReceivedFromGovernment>
  <us-gaap:StockIssuedDuringPeriodSharesNewIssues id="F_000201" contextRef="C_0001768224_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_us-gaapSubsidiarySaleOfStockAxis_arctUnderwrittenPublicOfferingMember_20200401_20200430" decimals="INF" unitRef="U_xbrlishares">4735297</us-gaap:StockIssuedDuringPeriodSharesNewIssues>
  <us-gaap:SharesIssuedPricePerShare id="F_000202" contextRef="C_0001768224_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_us-gaapSubsidiarySaleOfStockAxis_arctUnderwrittenPublicOfferingMember_20200420" decimals="INF" unitRef="U_iso4217USD_xbrlishares">17.00</us-gaap:SharesIssuedPricePerShare>
  <us-gaap:ProceedsFromIssuanceOfCommonStock id="F_000203" contextRef="C_0001768224_srtRangeAxis_srtMinimumMember_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_us-gaapSubsidiarySaleOfStockAxis_arctUnderwrittenPublicOfferingMember_20200401_20200430" decimals="-5" unitRef="U_iso4217USD">75500000</us-gaap:ProceedsFromIssuanceOfCommonStock>
  <us-gaap:NumberOfOperatingSegments id="F_000204" contextRef="C_0001768224_20200101_20200331" decimals="INF" unitRef="U_arctSegment">1</us-gaap:NumberOfOperatingSegments>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue id="F_000205" contextRef="C_0001768224_20190331" decimals="-3" unitRef="U_iso4217USD">31220000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:RestrictedCashNoncurrent id="F_000206" contextRef="C_0001768224_20190331" decimals="-3" unitRef="U_iso4217USD">107000</us-gaap:RestrictedCashNoncurrent>
  <us-gaap:Dividends id="F_000207" contextRef="C_0001768224_20200101_20200331" decimals="INF" unitRef="U_iso4217USD">0</us-gaap:Dividends>
  <us-gaap:Dividends id="F_000208" contextRef="C_0001768224_20190101_20190331" decimals="INF" unitRef="U_iso4217USD">0</us-gaap:Dividends>
  <us-gaap:ContractWithCustomerAssetNet id="F_000209" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">2179000</us-gaap:ContractWithCustomerAssetNet>
  <arct:ContractWithCustomerAssetAdditionsForRevenueRecognized id="F_000210" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">978000</arct:ContractWithCustomerAssetAdditionsForRevenueRecognized>
  <arct:ContractWithCustomerAssetDeductionsForCashCollections id="F_000211" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-806000</arct:ContractWithCustomerAssetDeductionsForCashCollections>
  <us-gaap:ContractWithCustomerAssetNet id="F_000212" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">2351000</us-gaap:ContractWithCustomerAssetNet>
  <us-gaap:ContractWithCustomerLiability id="F_000213" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">23579000</us-gaap:ContractWithCustomerLiability>
  <arct:ContractWithCustomerLiabilityAdditionsForAdvancedBillings id="F_000214" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">978000</arct:ContractWithCustomerLiabilityAdditionsForAdvancedBillings>
  <us-gaap:ContractWithCustomerLiabilityRevenueRecognized id="F_000215" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">-2646000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
  <us-gaap:ContractWithCustomerLiability id="F_000216" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">21911000</us-gaap:ContractWithCustomerLiability>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000217" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">897000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000218" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">513000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000219" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">911000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000220" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">1388000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000221" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">309000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000222" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">1894000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000223" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerTakedaAndOtherMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">529000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000224" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerTakedaAndOtherMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">555000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <arct:UpfrontPaymentReceived id="F_000225" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">7700000</arct:UpfrontPaymentReceived>
  <arct:RevenueRecognitionPotentialMilestoneRevenueRecognized id="F_000226" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">56500000</arct:RevenueRecognitionPotentialMilestoneRevenueRecognized>
  <arct:OptionExerciseRevenueRangePerTarget id="F_000227" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_srtRangeAxis_srtMinimumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20170101_20171231" decimals="-5" unitRef="U_iso4217USD">1000000</arct:OptionExerciseRevenueRangePerTarget>
  <arct:OptionExerciseRevenueRangePerTarget id="F_000228" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_srtRangeAxis_srtMaximumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20170101_20171231" decimals="-5" unitRef="U_iso4217USD">5000000</arct:OptionExerciseRevenueRangePerTarget>
  <us-gaap:RevenueRemainingPerformanceObligation id="F_000229" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200331" decimals="-6" unitRef="U_iso4217USD">0</us-gaap:RevenueRemainingPerformanceObligation>
  <us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1 id="F_000230" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapRevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_2020-04-01_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200331">P30M</us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1>
  <us-gaap:ContractWithCustomerLiability id="F_000231" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200331" decimals="-5" unitRef="U_iso4217USD">5900000</us-gaap:ContractWithCustomerLiability>
  <us-gaap:ContractWithCustomerLiability id="F_000232" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerJanssenMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20191231" decimals="-5" unitRef="U_iso4217USD">5900000</us-gaap:ContractWithCustomerLiability>
  <arct:UpfrontPaymentReceived id="F_000233" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">27900000</arct:UpfrontPaymentReceived>
  <arct:OptionExerciseRevenueRangePerTarget id="F_000234" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_srtRangeAxis_srtMinimumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">500000</arct:OptionExerciseRevenueRangePerTarget>
  <arct:OptionExerciseRevenueRangePerTarget id="F_000235" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_srtRangeAxis_srtMaximumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">1500000</arct:OptionExerciseRevenueRangePerTarget>
  <arct:RevenueRecognitionPotentialMilestoneRevenueRecognized id="F_000236" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">138000000</arct:RevenueRecognitionPotentialMilestoneRevenueRecognized>
  <arct:RoyaltyPaymentTermDescription id="F_000237" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331">Ultragenyx will pay royalties as a single-digit percentage of net sales on a product-by-product and country-by-country basis during the applicable royalty term.</arct:RoyaltyPaymentTermDescription>
  <arct:NumberOfReserveTargets id="F_000238" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190616" decimals="INF" unitRef="U_arctTarget">10</arct:NumberOfReserveTargets>
  <arct:NumberOfReserveTargets id="F_000239" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618" decimals="INF" unitRef="U_arctTarget">12</arct:NumberOfReserveTargets>
  <us-gaap:CommonStockSharesIssued id="F_000240" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618" decimals="-5" unitRef="U_xbrlishares">2400000</us-gaap:CommonStockSharesIssued>
  <arct:OptionToPurchaseOfAdditionalSharesOfCommonStock id="F_000241" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618" decimals="INF" unitRef="U_xbrlishares">600000</arct:OptionToPurchaseOfAdditionalSharesOfCommonStock>
  <arct:OptionToPurchaseOfAdditionalSharesOfCommonStockPricePerShare id="F_000242" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618" decimals="2" unitRef="U_iso4217USD_xbrlishares">16.00</arct:OptionToPurchaseOfAdditionalSharesOfCommonStockPricePerShare>
  <arct:CollaborationAgreementConsiderationReceived id="F_000243" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618" decimals="-5" unitRef="U_iso4217USD">30000000</arct:CollaborationAgreementConsiderationReceived>
  <arct:UpfrontPaymentReceived id="F_000244" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618" decimals="-5" unitRef="U_iso4217USD">6000000</arct:UpfrontPaymentReceived>
  <us-gaap:SaleOfStockConsiderationReceivedPerTransaction id="F_000245" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618" decimals="-5" unitRef="U_iso4217USD">24000000</us-gaap:SaleOfStockConsiderationReceivedPerTransaction>
  <arct:CollaborationAgreementTransactionPrice id="F_000246" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618" decimals="-5" unitRef="U_iso4217USD">14400000</arct:CollaborationAgreementTransactionPrice>
  <arct:LackOfMarketabilityDiscountRestrictedPeriod id="F_000247" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_srtRangeAxis_srtMaximumMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618">P2Y</arct:LackOfMarketabilityDiscountRestrictedPeriod>
  <us-gaap:RevenuePracticalExpedientRemainingPerformanceObligationDescription id="F_000248" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331">The Company recognizes the reimbursement of labor and expenses as costs are incurred and none of the development and commercialization milestones were included in the transaction price, as all milestone amounts were fully constrained.</us-gaap:RevenuePracticalExpedientRemainingPerformanceObligationDescription>
  <us-gaap:RevenueRemainingPerformanceObligation id="F_000249" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200331" decimals="-3" unitRef="U_iso4217USD">0</us-gaap:RevenueRemainingPerformanceObligation>
  <us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice id="F_000250" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">1100000</us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice>
  <arct:RevenueRecognitionReserveTargetExclusivityPeriod id="F_000251" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331">P4Y</arct:RevenueRecognitionReserveTargetExclusivityPeriod>
  <us-gaap:ContractWithCustomerLiability id="F_000252" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200331" decimals="-5" unitRef="U_iso4217USD">11800000</us-gaap:ContractWithCustomerLiability>
  <us-gaap:ContractWithCustomerLiability id="F_000253" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20191231" decimals="-5" unitRef="U_iso4217USD">12700000</us-gaap:ContractWithCustomerLiability>
  <arct:DevelopmentAndOptionAgreementDate id="F_000254" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">2018-01-31</arct:DevelopmentAndOptionAgreementDate>
  <arct:ExpirationOfIntialTerm id="F_000255" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">P8Y</arct:ExpirationOfIntialTerm>
  <arct:OptionToExtendInitialTermOnAnAnnualBasis id="F_000256" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">P3Y</arct:OptionToExtendInitialTermOnAnAnnualBasis>
  <arct:RevenueRecognitionPotentialMilestoneRevenueRecognized id="F_000257" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_srtProductOrServiceAxis_arctRareDiseaseTargetsMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">14000000</arct:RevenueRecognitionPotentialMilestoneRevenueRecognized>
  <arct:RevenueRecognitionPotentialMilestoneRevenueRecognized id="F_000258" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_srtProductOrServiceAxis_arctNonRareDiseaseTargetsMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">23000000</arct:RevenueRecognitionPotentialMilestoneRevenueRecognized>
  <arct:RoyaltyPaymentTermDescription id="F_000259" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">CureVac will pay royalties as a percentage of net sales on a product-by-product and country-by-country basis during the applicable royalty term in the low single-digit range</arct:RoyaltyPaymentTermDescription>
  <arct:CollaborationAgreementTerminationDate id="F_000260" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20190210_20190211">2019-02-11</arct:CollaborationAgreementTerminationDate>
  <arct:PercentageOfGlobalRightsReassumed id="F_000261" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20190210_20190211" decimals="INF" unitRef="U_xbrlipure">1.00</arct:PercentageOfGlobalRightsReassumed>
  <arct:CollaborationAgreementSettlementObligationOneTimeSettledAmount id="F_000262" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_us-gaapTypeOfArrangementAxis_arctTerminationAgreementMember_20190725_20190726" decimals="-5" unitRef="U_iso4217USD">4000000</arct:CollaborationAgreementSettlementObligationOneTimeSettledAmount>
  <arct:PotentialTargetLicenseTerm id="F_000263" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_srtRangeAxis_srtMaximumMember_20190725_20190726">P8Y</arct:PotentialTargetLicenseTerm>
  <arct:PotentialTargetLicenseTerm id="F_000264" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacEnteredIntoCoDevelopmentAgreementMember_srtRangeAxis_srtMinimumMember_20190725_20190726">P4Y</arct:PotentialTargetLicenseTerm>
  <us-gaap:RevenuePracticalExpedientRemainingPerformanceObligationDescription id="F_000265" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">The Company recognizes the reimbursement of labor and expenses as costs are incurred and none of the development and commercialization milestones were included in the transaction price, as all milestone amounts were fully constrained.</us-gaap:RevenuePracticalExpedientRemainingPerformanceObligationDescription>
  <us-gaap:RevenueRemainingPerformanceObligation id="F_000266" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200331" decimals="INF" unitRef="U_iso4217USD">0</us-gaap:RevenueRemainingPerformanceObligation>
  <arct:AdjustmentsToTransactionPrice id="F_000267" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331" decimals="INF" unitRef="U_iso4217USD">0</arct:AdjustmentsToTransactionPrice>
  <arct:UpfrontFeeReceived id="F_000268" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">5000000</arct:UpfrontFeeReceived>
  <arct:CollaborationAgreementContractualTerm id="F_000269" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331">P46M</arct:CollaborationAgreementContractualTerm>
  <us-gaap:ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract id="F_000270" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">400000</us-gaap:ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract>
  <us-gaap:ContractWithCustomerLiability id="F_000271" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20200331" decimals="-5" unitRef="U_iso4217USD">3000000</us-gaap:ContractWithCustomerLiability>
  <us-gaap:ContractWithCustomerLiability id="F_000272" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerCureVacMember_us-gaapAdjustmentsForNewAccountingPronouncementsAxis_us-gaapAccountingStandardsUpdate201409Member_us-gaapTypeOfArrangementAxis_arctMRNATechnologyMember_20191231" decimals="-5" unitRef="U_iso4217USD">3200000</us-gaap:ContractWithCustomerLiability>
  <arct:RevenueRelatedToAmortizationOfUpfrontPayment id="F_000273" contextRef="C_0001768224_us-gaapRelatedPartyTransactionsByRelatedPartyAxis_arctTakedaPharmaceuticalCompanyLimitedAndProvidenceTherapeuticsIncorporationMember_us-gaapTypeOfArrangementAxis_arctOtherCollaborationAgreementsMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">500000</arct:RevenueRelatedToAmortizationOfUpfrontPayment>
  <us-gaap:PrepaidExpenseCurrent id="F_000274" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1344000</us-gaap:PrepaidExpenseCurrent>
  <us-gaap:PrepaidExpenseCurrent id="F_000275" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">720000</us-gaap:PrepaidExpenseCurrent>
  <us-gaap:OtherAssetsCurrent id="F_000276" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">593000</us-gaap:OtherAssetsCurrent>
  <us-gaap:OtherAssetsCurrent id="F_000277" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">38000</us-gaap:OtherAssetsCurrent>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000278" contextRef="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapEquipmentMember_20200331" decimals="-3" unitRef="U_iso4217USD">4045000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000279" contextRef="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapEquipmentMember_20191231" decimals="-3" unitRef="U_iso4217USD">3658000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000280" contextRef="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapComputerEquipmentMember_20200331" decimals="-3" unitRef="U_iso4217USD">271000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000281" contextRef="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapComputerEquipmentMember_20191231" decimals="-3" unitRef="U_iso4217USD">271000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000282" contextRef="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapFurnitureAndFixturesMember_20200331" decimals="-3" unitRef="U_iso4217USD">574000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000283" contextRef="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapFurnitureAndFixturesMember_20191231" decimals="-3" unitRef="U_iso4217USD">561000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000284" contextRef="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapLeaseholdImprovementsMember_20200331" decimals="-3" unitRef="U_iso4217USD">44000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000285" contextRef="C_0001768224_us-gaapPropertyPlantAndEquipmentByTypeAxis_us-gaapLeaseholdImprovementsMember_20191231" decimals="-3" unitRef="U_iso4217USD">40000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000286" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">4934000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross id="F_000287" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">4530000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment id="F_000288" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">2363000</us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment>
  <us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment id="F_000289" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">2181000</us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment>
  <us-gaap:EmployeeRelatedLiabilitiesCurrent id="F_000290" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1635000</us-gaap:EmployeeRelatedLiabilitiesCurrent>
  <us-gaap:EmployeeRelatedLiabilitiesCurrent id="F_000291" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">1608000</us-gaap:EmployeeRelatedLiabilitiesCurrent>
  <arct:AccruedCysticFibrosisFoundationLiability id="F_000292" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1921000</arct:AccruedCysticFibrosisFoundationLiability>
  <arct:AccruedCysticFibrosisFoundationLiability id="F_000293" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">1949000</arct:AccruedCysticFibrosisFoundationLiability>
  <us-gaap:OperatingLeaseLiabilityCurrent id="F_000294" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1474000</us-gaap:OperatingLeaseLiabilityCurrent>
  <us-gaap:OperatingLeaseLiabilityCurrent id="F_000295" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">827000</us-gaap:OperatingLeaseLiabilityCurrent>
  <arct:OtherAccruedResearchAndDevelopmentExpenses id="F_000296" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">4745000</arct:OtherAccruedResearchAndDevelopmentExpenses>
  <arct:OtherAccruedResearchAndDevelopmentExpenses id="F_000297" contextRef="C_0001768224_20191231" decimals="-3" unitRef="U_iso4217USD">2750000</arct:OtherAccruedResearchAndDevelopmentExpenses>
  <us-gaap:ProceedsFromIssuanceOfLongTermDebt id="F_000298" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012_20181012" decimals="-5" unitRef="U_iso4217USD">10000000</us-gaap:ProceedsFromIssuanceOfLongTermDebt>
  <us-gaap:DebtInstrumentCollateral id="F_000299" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012_20181012">The Loan is collateralized by all of the assets of the Company, excluding intellectual property, which is subject to a negative pledge. The Loan contains customary conditions of borrowing, events of default and covenants, including covenants that restrict the Company&#8217;s ability to dispose of assets, merge with or acquire other entities, incur indebtedness and make distributions to holders of the Company&#8217;s capital stock. In addition, the Company is required to maintain at least 100% of its consolidated, unrestricted cash, or $15 million, whichever is lower, with the Bank.</us-gaap:DebtInstrumentCollateral>
  <arct:PercentageRequiredToBeMaintainedInConsolidatedUnrestrictedCash id="F_000300" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_srtRangeAxis_srtMinimumMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012_20181012" decimals="INF" unitRef="U_xbrlipure">1.00</arct:PercentageRequiredToBeMaintainedInConsolidatedUnrestrictedCash>
  <us-gaap:DebtInstrumentCollateralAmount id="F_000301" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012" decimals="-6" unitRef="U_iso4217USD">15000000</us-gaap:DebtInstrumentCollateralAmount>
  <us-gaap:DebtInstrumentFaceAmount id="F_000302" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030" decimals="-6" unitRef="U_iso4217USD">15000000</us-gaap:DebtInstrumentFaceAmount>
  <us-gaap:ProceedsFromIssuanceOfDebt id="F_000303" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030" decimals="-5" unitRef="U_iso4217USD">5000000</us-gaap:ProceedsFromIssuanceOfDebt>
  <us-gaap:DebtInstrumentMaturityDate id="F_000304" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030">2023-10-30</us-gaap:DebtInstrumentMaturityDate>
  <us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 id="F_000305" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_srtRangeAxis_srtMinimumMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030" decimals="4" unitRef="U_xbrlipure">0.0125</us-gaap:DebtInstrumentBasisSpreadOnVariableRate1>
  <us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 id="F_000306" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_srtRangeAxis_srtMaximumMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030" decimals="4" unitRef="U_xbrlipure">0.0275</us-gaap:DebtInstrumentBasisSpreadOnVariableRate1>
  <arct:DebtInstrumentInterestOnlyPaymentExtendedMaturityDate id="F_000307" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030">2021-10-01</arct:DebtInstrumentInterestOnlyPaymentExtendedMaturityDate>
  <us-gaap:UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums id="F_000308" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012" decimals="0" unitRef="U_iso4217USD">54000</us-gaap:UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums>
  <arct:WarrantFeePayable id="F_000309" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20181012" decimals="0" unitRef="U_iso4217USD">525000</arct:WarrantFeePayable>
  <arct:PrepaymentFeePercentage id="F_000310" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_srtRangeAxis_srtMinimumMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030" decimals="4" unitRef="U_xbrlipure">0.0050</arct:PrepaymentFeePercentage>
  <arct:PrepaymentFeePercentage id="F_000311" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_srtRangeAxis_srtMaximumMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20191030_20191030" decimals="4" unitRef="U_xbrlipure">0.0200</arct:PrepaymentFeePercentage>
  <arct:PrepaymentFeePercentage id="F_000312" contextRef="C_0001768224_srtCounterpartyNameAxis_arctWesternAllianceBankMember_us-gaapLongtermDebtTypeAxis_us-gaapLongTermDebtMember_us-gaapTypeOfArrangementAxis_arctLoanAndSecurityAgreementMember_20200101_20200331" decimals="2" unitRef="U_xbrlipure">0.02</arct:PrepaymentFeePercentage>
  <us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear id="F_000313" contextRef="C_0001768224_20200331" decimals="-6" unitRef="U_iso4217USD">0</us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear>
  <us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo id="F_000314" contextRef="C_0001768224_20200331" decimals="-5" unitRef="U_iso4217USD">4000000</us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo>
  <us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree id="F_000315" contextRef="C_0001768224_20200331" decimals="-5" unitRef="U_iso4217USD">6000000</us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree>
  <us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour id="F_000316" contextRef="C_0001768224_20200331" decimals="-5" unitRef="U_iso4217USD">5500000</us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour>
  <us-gaap:InterestExpenseLongTermDebt id="F_000317" contextRef="C_0001768224_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">300000</us-gaap:InterestExpenseLongTermDebt>
  <us-gaap:InterestExpenseLongTermDebt id="F_000318" contextRef="C_0001768224_20190101_20190331" decimals="-5" unitRef="U_iso4217USD">200000</us-gaap:InterestExpenseLongTermDebt>
  <us-gaap:StockIssuedDuringPeriodSharesNewIssues id="F_000319" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20130301_20130331" decimals="INF" unitRef="U_xbrlishares">2783686</us-gaap:StockIssuedDuringPeriodSharesNewIssues>
  <us-gaap:SharePrice id="F_000320" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20130331" decimals="INF" unitRef="U_iso4217USD_xbrlishares">0.0068</us-gaap:SharePrice>
  <arct:StockIssuedDuringPeriodSharesSubjectToRepurchaseOption id="F_000321" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20130301_20130331" decimals="INF" unitRef="U_xbrlishares">1538353</arct:StockIssuedDuringPeriodSharesSubjectToRepurchaseOption>
  <arct:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionRepurchasePeriodFromTerminationDate id="F_000322" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20130301_20130331">P2M</arct:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionRepurchasePeriodFromTerminationDate>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage id="F_000323" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapVestingAxis_us-gaapShareBasedCompensationAwardTrancheOneMember_20130301_20130331" decimals="2" unitRef="U_xbrlipure">0.25</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage id="F_000324" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapVestingAxis_us-gaapShareBasedCompensationAwardTrancheTwoMember_20130301_20130331" decimals="2" unitRef="U_xbrlipure">0.25</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage id="F_000325" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapVestingAxis_us-gaapShareBasedCompensationAwardTrancheThreeMember_20130301_20130331" decimals="2" unitRef="U_xbrlipure">0.25</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage id="F_000326" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapVestingAxis_arctShareBasedCompensationAwardTrancheFourMember_20130301_20130331" decimals="2" unitRef="U_xbrlipure">0.25</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage>
  <arct:NumberOfMilestonesAchieved id="F_000327" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20161231" decimals="INF" unitRef="U_arctMilestone">2</arct:NumberOfMilestonesAchieved>
  <arct:NumberOfMilestonesAchieved id="F_000328" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20171231" decimals="INF" unitRef="U_arctMilestone">2</arct:NumberOfMilestonesAchieved>
  <arct:UnvestedRestrictedStockShares id="F_000329" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20141231" decimals="INF" unitRef="U_xbrlishares">769176</arct:UnvestedRestrictedStockShares>
  <arct:UnvestedRestrictedStockShares id="F_000330" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20200331" decimals="INF" unitRef="U_xbrlishares">622667</arct:UnvestedRestrictedStockShares>
  <arct:UnvestedRestrictedStockShares id="F_000331" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20190331" decimals="INF" unitRef="U_xbrlishares">622667</arct:UnvestedRestrictedStockShares>
  <arct:UnvestedRestrictedStockShares id="F_000332" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_us-gaapSubsequentEventTypeAxis_us-gaapSubsequentEventMember_20200501" decimals="INF" unitRef="U_xbrlishares">311333</arct:UnvestedRestrictedStockShares>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAcceleratedVestingNumber id="F_000333" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20170101_20171231" decimals="INF" unitRef="U_xbrlishares">146510</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAcceleratedVestingNumber>
  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost id="F_000334" contextRef="C_0001768224_us-gaapAwardTypeAxis_arctRestrictedCommonStockMember_20170101_20171231" decimals="0" unitRef="U_iso4217USD">1495000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost>
  <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount id="F_000335" contextRef="C_0001768224_20200101_20200331" decimals="INF" unitRef="U_xbrlishares">316957</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
  <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount id="F_000336" contextRef="C_0001768224_20190101_20190331" decimals="INF" unitRef="U_xbrlishares">67051</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
  <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount id="F_000337" contextRef="C_0001768224_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_arctUnvestedRestrictedOrdinarySharesMember_20200101_20200331" decimals="INF" unitRef="U_xbrlishares">622667</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
  <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount id="F_000338" contextRef="C_0001768224_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_arctUnvestedRestrictedOrdinarySharesMember_20190101_20190331" decimals="INF" unitRef="U_xbrlishares">622667</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized id="F_000339" contextRef="C_0001768224_srtRangeAxis_srtMaximumMember_us-gaapPlanNameAxis_arctTwoThousandEighteenOmnibusInactivePlanMember_20180831" decimals="INF" unitRef="U_xbrlishares">1100000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>
  <us-gaap:CommonStockCapitalSharesReservedForFutureIssuance id="F_000340" contextRef="C_0001768224_us-gaapPlanNameAxis_arctTwoThousandNineteenOmnibusIncentivePlanMember_20200331" decimals="INF" unitRef="U_xbrlishares">353332</us-gaap:CommonStockCapitalSharesReservedForFutureIssuance>
  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized id="F_000341" contextRef="C_0001768224_srtRangeAxis_srtMaximumMember_us-gaapPlanNameAxis_arctTwoThousandNineteenOmnibusIncentivePlanMember_20190630" decimals="INF" unitRef="U_xbrlishares">2600000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>
  <us-gaap:AllocatedShareBasedCompensationExpense id="F_000342" contextRef="C_0001768224_us-gaapIncomeStatementLocationAxis_us-gaapResearchAndDevelopmentExpenseMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">266000</us-gaap:AllocatedShareBasedCompensationExpense>
  <us-gaap:AllocatedShareBasedCompensationExpense id="F_000343" contextRef="C_0001768224_us-gaapIncomeStatementLocationAxis_us-gaapResearchAndDevelopmentExpenseMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">152000</us-gaap:AllocatedShareBasedCompensationExpense>
  <us-gaap:AllocatedShareBasedCompensationExpense id="F_000344" contextRef="C_0001768224_us-gaapIncomeStatementLocationAxis_us-gaapGeneralAndAdministrativeExpenseMember_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">583000</us-gaap:AllocatedShareBasedCompensationExpense>
  <us-gaap:AllocatedShareBasedCompensationExpense id="F_000345" contextRef="C_0001768224_us-gaapIncomeStatementLocationAxis_us-gaapGeneralAndAdministrativeExpenseMember_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">247000</us-gaap:AllocatedShareBasedCompensationExpense>
  <us-gaap:AllocatedShareBasedCompensationExpense id="F_000346" contextRef="C_0001768224_20200101_20200331" decimals="-3" unitRef="U_iso4217USD">849000</us-gaap:AllocatedShareBasedCompensationExpense>
  <us-gaap:AllocatedShareBasedCompensationExpense id="F_000347" contextRef="C_0001768224_20190101_20190331" decimals="-3" unitRef="U_iso4217USD">399000</us-gaap:AllocatedShareBasedCompensationExpense>
  <us-gaap:IncomeTaxExpenseBenefit id="F_000348" contextRef="C_0001768224_20200101_20200331" decimals="-6" unitRef="U_iso4217USD">0</us-gaap:IncomeTaxExpenseBenefit>
  <us-gaap:GrantsReceivable id="F_000349" contextRef="C_0001768224_srtRangeAxis_srtMaximumMember_srtStatementGeographicalAxis_countrySG_us-gaapTypeOfArrangementAxis_arctCOVIDNineteenVaccineDevelopmentMember_20200304" decimals="-5" unitRef="U_iso4217SGD">14000000</us-gaap:GrantsReceivable>
  <us-gaap:GrantsReceivable id="F_000350" contextRef="C_0001768224_srtRangeAxis_srtMaximumMember_srtStatementGeographicalAxis_countrySG_us-gaapTypeOfArrangementAxis_arctCOVIDNineteenVaccineDevelopmentMember_20200304" decimals="-6" unitRef="U_iso4217USD">10000000</us-gaap:GrantsReceivable>
  <arct:ContraResearchAndDevelopmentExpense id="F_000351" contextRef="C_0001768224_us-gaapTypeOfArrangementAxis_arctCOVIDNineteenVaccineDevelopmentMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">500000</arct:ContraResearchAndDevelopmentExpense>
  <us-gaap:PaymentsForAdvanceToAffiliate id="F_000352" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtProductOrServiceAxis_arctLUNARCFMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713_20190713" decimals="-5" unitRef="U_iso4217USD">15000000</us-gaap:PaymentsForAdvanceToAffiliate>
  <us-gaap:PaymentsForAdvanceToAffiliate id="F_000353" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtProductOrServiceAxis_arctLUNARCFMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190712_20190712" decimals="-5" unitRef="U_iso4217USD">3200000</us-gaap:PaymentsForAdvanceToAffiliate>
  <arct:PaymentsForMatchingFundsForRemainingBudgetedCosts id="F_000354" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713_20190713" decimals="-5" unitRef="U_iso4217USD">5000000</arct:PaymentsForMatchingFundsForRemainingBudgetedCosts>
  <arct:DisbursedAmountUponExecutionOfAmendment id="F_000355" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713_20190713" decimals="-5" unitRef="U_iso4217USD">4000000</arct:DisbursedAmountUponExecutionOfAmendment>
  <arct:DisbursementAmountPayableUponAchievementOfProjectGoal id="F_000356" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtStatementScenarioAxis_arctDisbursementPeriodOneMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713" decimals="-5" unitRef="U_iso4217USD">2000000</arct:DisbursementAmountPayableUponAchievementOfProjectGoal>
  <arct:DisbursementAmountPayableUponAchievementOfProjectGoal id="F_000357" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtStatementScenarioAxis_arctDisbursementPeriodTwoMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713" decimals="-5" unitRef="U_iso4217USD">2000000</arct:DisbursementAmountPayableUponAchievementOfProjectGoal>
  <arct:DisbursementAmountPayableUponAchievementOfProjectGoal id="F_000358" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtStatementScenarioAxis_arctDisbursementPeriodThreeMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713" decimals="-5" unitRef="U_iso4217USD">2000000</arct:DisbursementAmountPayableUponAchievementOfProjectGoal>
  <arct:DisbursementAmountPayableUponAchievementOfProjectGoal id="F_000359" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_srtStatementScenarioAxis_arctDisbursementPeriodFourMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713" decimals="-5" unitRef="U_iso4217USD">2000000</arct:DisbursementAmountPayableUponAchievementOfProjectGoal>
  <arct:FinalPaymentOfDisbursementAmount id="F_000360" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713" decimals="-5" unitRef="U_iso4217USD">3000000</arct:FinalPaymentOfDisbursementAmount>
  <arct:DisbursementPaymentUponAchievementOfRequiredManufacturingPracticesAndINDApplication id="F_000361" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20190713" decimals="-5" unitRef="U_iso4217USD">2300000</arct:DisbursementPaymentUponAchievementOfRequiredManufacturingPracticesAndINDApplication>
  <arct:ContraExpenseIncludedInResearchAndDevelopmentExpense id="F_000362" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">2000000</arct:ContraExpenseIncludedInResearchAndDevelopmentExpense>
  <arct:ContraExpenseRemainingAmountIncludedInAccruedExpenses id="F_000363" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCysticFibrosisFoundationTherapeuticsIncMember_us-gaapTypeOfArrangementAxis_arctUnderlyingAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">1900000</arct:ContraExpenseRemainingAmountIncludedInAccruedExpenses>
  <us-gaap:LesseeOperatingLeaseRenewalTerm id="F_000364" contextRef="C_0001768224_us-gaapTypeOfArrangementAxis_arctOctoberTwoThousandAndSeventeenLeaseAmendmentMember_20171031">P84M</us-gaap:LesseeOperatingLeaseRenewalTerm>
  <us-gaap:LesseeOperatingLeaseTermOfContract id="F_000365" contextRef="C_0001768224_us-gaapTypeOfArrangementAxis_arctOctoberTwoThousandAndSeventeenLeaseAmendmentMember_20171031">P4M</us-gaap:LesseeOperatingLeaseTermOfContract>
  <us-gaap:PaymentsForProceedsFromTenantAllowance id="F_000366" contextRef="C_0001768224_us-gaapTypeOfArrangementAxis_arctOctoberTwoThousandAndSeventeenLeaseAmendmentMember_20171001_20171031" decimals="0" unitRef="U_iso4217USD">74000</us-gaap:PaymentsForProceedsFromTenantAllowance>
  <us-gaap:LesseeOperatingLeaseOptionToExtend id="F_000367" contextRef="C_0001768224_us-gaapTypeOfArrangementAxis_arctOctoberTwoThousandAndSeventeenLeaseAmendmentMember_20171001_20171031">The lease may be extended for one five-year period at the then current market rate with annual escalations;</us-gaap:LesseeOperatingLeaseOptionToExtend>
  <us-gaap:SecurityDeposit id="F_000368" contextRef="C_0001768224_us-gaapTypeOfArrangementAxis_arctOctoberTwoThousandAndSeventeenLeaseAmendmentMember_20171031" decimals="0" unitRef="U_iso4217USD">96000</us-gaap:SecurityDeposit>
  <us-gaap:LesseeOperatingLeaseRenewalTerm id="F_000369" contextRef="C_0001768224_20200131">P13M</us-gaap:LesseeOperatingLeaseRenewalTerm>
  <us-gaap:LesseeOperatingLeaseTermOfContract id="F_000370" contextRef="C_0001768224_20200131">P1M</us-gaap:LesseeOperatingLeaseTermOfContract>
  <us-gaap:LesseeOperatingLeaseOptionToExtend id="F_000371" contextRef="C_0001768224_20200101_20200131">The lease may be extended for one twelve-month period;</us-gaap:LesseeOperatingLeaseOptionToExtend>
  <us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear id="F_000372" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1489000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear>
  <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo id="F_000373" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1427000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo>
  <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree id="F_000374" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1349000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree>
  <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour id="F_000375" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1390000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour>
  <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive id="F_000376" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1432000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive>
  <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive id="F_000377" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">314000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive>
  <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue id="F_000378" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">7401000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue>
  <us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount id="F_000379" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">1298000</us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount>
  <us-gaap:OperatingLeaseLiability id="F_000380" contextRef="C_0001768224_20200331" decimals="-3" unitRef="U_iso4217USD">6103000</us-gaap:OperatingLeaseLiability>
  <us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1 id="F_000381" contextRef="C_0001768224_20200331">P4Y8M12D</us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1>
  <us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent id="F_000382" contextRef="C_0001768224_20200331" decimals="3" unitRef="U_xbrlipure">0.084</us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent>
  <us-gaap:OperatingLeaseCost id="F_000383" contextRef="C_0001768224_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">400000</us-gaap:OperatingLeaseCost>
  <us-gaap:OperatingLeaseCost id="F_000384" contextRef="C_0001768224_20190101_20190331" decimals="-5" unitRef="U_iso4217USD">300000</us-gaap:OperatingLeaseCost>
  <us-gaap:SaleOfStockPercentageOfOwnershipAfterTransaction id="F_000385" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="INF" unitRef="U_xbrlipure">0.158</us-gaap:SaleOfStockPercentageOfOwnershipAfterTransaction>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000386" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">900000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax id="F_000387" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190101_20190331" decimals="-5" unitRef="U_iso4217USD">1400000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
  <arct:CommonStockSharesRestrictedFromSellingPeriodSubsequentToIssuanceDate id="F_000388" contextRef="C_0001768224_srtCounterpartyNameAxis_arctCollaborationPartnerUltragenyxMember_us-gaapTypeOfArrangementAxis_arctResearchCollaborationAndExclusiveLicenseAgreementMember_20190618_20190618">P2Y</arct:CommonStockSharesRestrictedFromSellingPeriodSubsequentToIssuanceDate>
  <us-gaap:EquityMethodInvestmentOwnershipPercentage id="F_000389" contextRef="C_0001768224_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_arctADAIRTechnologyMember_20200331" decimals="2" unitRef="U_xbrlipure">0.30</us-gaap:EquityMethodInvestmentOwnershipPercentage>
  <us-gaap:EquityMethodInvestmentOwnershipPercentage id="F_000390" contextRef="C_0001768224_srtRangeAxis_srtMinimumMember_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_arctADAIRTechnologyMember_20200331" decimals="2" unitRef="U_xbrlipure">0.19</us-gaap:EquityMethodInvestmentOwnershipPercentage>
  <us-gaap:IncomeLossFromEquityMethodInvestments id="F_000391" contextRef="C_0001768224_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_arctADAIRTechnologyMember_20200101_20200331" decimals="-5" unitRef="U_iso4217USD">-200000</us-gaap:IncomeLossFromEquityMethodInvestments>
</xbrli:xbrl>
