<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2022"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2022"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="deca-20221014.xsd" xlink:type="simple"/>
    <context id="P10_14_2022To10_14_2022">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001913577</identifier>
        </entity>
        <period>
            <startDate>2022-10-14</startDate>
            <endDate>2022-10-14</endDate>
        </period>
    </context>
    <context id="P10_14_2022To10_14_2022_CommonClassAMemberusgaapStatementClassOfStockAxis">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001913577</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonClassAMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2022-10-14</startDate>
            <endDate>2022-10-14</endDate>
        </period>
    </context>
    <context id="P10_14_2022To10_14_2022_WarrantMemberusgaapStatementClassOfStockAxis">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001913577</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:WarrantMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2022-10-14</startDate>
            <endDate>2022-10-14</endDate>
        </period>
    </context>
    <context id="P10_14_2022To10_14_2022_CapitalUnitsMemberusgaapStatementClassOfStockAxis">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001913577</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CapitalUnitsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2022-10-14</startDate>
            <endDate>2022-10-14</endDate>
        </period>
    </context>
    <dei:AmendmentFlag contextRef="P10_14_2022To10_14_2022">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="P10_14_2022To10_14_2022">0001913577</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="P10_14_2022To10_14_2022">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="P10_14_2022To10_14_2022">2022-10-14</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="P10_14_2022To10_14_2022">Denali Capital Acquisition Corp.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="P10_14_2022To10_14_2022">E9</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="P10_14_2022To10_14_2022">001-41351</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="P10_14_2022To10_14_2022">98-1659463</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="P10_14_2022To10_14_2022">437 Madison Avenue</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="P10_14_2022To10_14_2022">27th Floor</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown contextRef="P10_14_2022To10_14_2022">New York</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="P10_14_2022To10_14_2022">NY</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="P10_14_2022To10_14_2022">10022</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="P10_14_2022To10_14_2022">646</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="P10_14_2022To10_14_2022">978-5180</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="P10_14_2022To10_14_2022">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="P10_14_2022To10_14_2022">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="P10_14_2022To10_14_2022">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="P10_14_2022To10_14_2022">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle contextRef="P10_14_2022To10_14_2022_CapitalUnitsMemberusgaapStatementClassOfStockAxis">Units, consisting of one Class A Ordinary Share and one Warrant</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="P10_14_2022To10_14_2022_CapitalUnitsMemberusgaapStatementClassOfStockAxis">DECAU</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="P10_14_2022To10_14_2022_CapitalUnitsMemberusgaapStatementClassOfStockAxis">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle contextRef="P10_14_2022To10_14_2022_CommonClassAMemberusgaapStatementClassOfStockAxis">Class A Ordinary Shares, par value $0.0001 per share</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="P10_14_2022To10_14_2022_CommonClassAMemberusgaapStatementClassOfStockAxis">DECA</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="P10_14_2022To10_14_2022_CommonClassAMemberusgaapStatementClassOfStockAxis">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle contextRef="P10_14_2022To10_14_2022_WarrantMemberusgaapStatementClassOfStockAxis">Warrants, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="P10_14_2022To10_14_2022_WarrantMemberusgaapStatementClassOfStockAxis">DECAW</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="P10_14_2022To10_14_2022_WarrantMemberusgaapStatementClassOfStockAxis">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="P10_14_2022To10_14_2022">true</dei:EntityEmergingGrowthCompany>
    <dei:EntityExTransitionPeriod contextRef="P10_14_2022To10_14_2022">false</dei:EntityExTransitionPeriod>
</xbrl>
