<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:lccc="http://lakeshore.com/20260522"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2025"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="lccc-20260522.xsd" xlink:type="simple"/>
    <context id="From2026-05-22to2026-05-22">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002049248</identifier>
        </entity>
        <period>
            <startDate>2026-05-22</startDate>
            <endDate>2026-05-22</endDate>
        </period>
    </context>
    <context id="From2026-05-22to2026-05-22_lccc_UnitsMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002049248</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">lccc:UnitsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-22</startDate>
            <endDate>2026-05-22</endDate>
        </period>
    </context>
    <context id="From2026-05-22to2026-05-22_lccc_OrdinarySharesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002049248</identifier>
            <segment>
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        </entity>
        <period>
            <startDate>2026-05-22</startDate>
            <endDate>2026-05-22</endDate>
        </period>
    </context>
    <context id="From2026-05-22to2026-05-22_lccc_RightMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002049248</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">lccc:RightMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-22</startDate>
            <endDate>2026-05-22</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey contextRef="From2026-05-22to2026-05-22" id="ixv-1082">0002049248</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="From2026-05-22to2026-05-22" id="ixv-1083">false</dei:AmendmentFlag>
    <dei:DocumentType contextRef="From2026-05-22to2026-05-22" id="ixv-1127">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="From2026-05-22to2026-05-22" id="ixv-1128">2026-05-22</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="From2026-05-22to2026-05-22" id="ixv-1129">Lakeshore Acquisition III Corp.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="From2026-05-22to2026-05-22" id="ixv-1130">E9</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="From2026-05-22to2026-05-22" id="ixv-1131">001-42623</dei:EntityFileNumber>
    <dei:EntityAddressAddressLine1 contextRef="From2026-05-22to2026-05-22" id="ixv-1132">667 Madison Avenue</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown contextRef="From2026-05-22to2026-05-22" id="ixv-1133">New York</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="From2026-05-22to2026-05-22" id="ixv-1134">NY</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="From2026-05-22to2026-05-22" id="ixv-1135">10065</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="From2026-05-22to2026-05-22" id="ixv-1136">917</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="From2026-05-22to2026-05-22" id="ixv-1137">327-9933</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="From2026-05-22to2026-05-22" id="ixv-1138">true</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="From2026-05-22to2026-05-22" id="ixv-1139">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="From2026-05-22to2026-05-22" id="ixv-1140">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="From2026-05-22to2026-05-22" id="ixv-1141">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="From2026-05-22to2026-05-22_lccc_UnitsMember"
      id="aid_1_0">Units, each consisting of one ordinary share and one right to receive one-sixth of one ordinary share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2026-05-22to2026-05-22_lccc_UnitsMember"
      id="aid_1_1">LCCCU</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2026-05-22to2026-05-22_lccc_UnitsMember"
      id="aid_1_2">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2026-05-22to2026-05-22_lccc_OrdinarySharesMember"
      id="aid_2_0">Ordinary shares</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2026-05-22to2026-05-22_lccc_OrdinarySharesMember"
      id="aid_2_1">LCCC</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2026-05-22to2026-05-22_lccc_OrdinarySharesMember"
      id="aid_2_2">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2026-05-22to2026-05-22_lccc_RightMember"
      id="aid_3_0">Rights</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2026-05-22to2026-05-22_lccc_RightMember"
      id="aid_3_1">LCCCR</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2026-05-22to2026-05-22_lccc_RightMember"
      id="aid_3_2">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="From2026-05-22to2026-05-22" id="ixv-1151">true</dei:EntityEmergingGrowthCompany>
    <dei:EntityExTransitionPeriod contextRef="From2026-05-22to2026-05-22" id="ixv-1152">false</dei:EntityExTransitionPeriod>
</xbrl>
