<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="legh-20260813.xsd" xlink:type="simple"/>
    <context id="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001436208</identifier>
        </entity>
        <period>
            <startDate>2026-08-13</startDate>
            <endDate>2026-08-13</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_CWayRCnv5k6JQk6K1eucuw_1_1">0001436208</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_-jgNTw0bMEiv_ryWzxv0aw_2_1">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_lX77ffNsl0SpjEjUVBkgJw">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_cywQs4ZDVEuIj4fcVtN0ng">2026-08-13</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_kxedhUd8GEKMSDejw9PxkQ_1_0">LEGACY HOUSING CORPORATION</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_CXzLpjoBFESAINagaHZVng_4_0">TX</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_SELLPpwpWESGPB1Fw1F6uA_4_2">001-38761</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_asFBUkJ7XEuAOLYxPJP84A_4_4">20-2897516</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_jDnBwxmYwki6aYIY_atEjQ">1600 Airport Freeway</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_I-V4qtqmp0yRn49zh1tU3A">#100</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_pAnb9Le7ukmFSsmLm9DQLA">Bedford</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_liMj3acdZU2owk_dGgR_QQ">TX</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_cIkDMPsLU0WFRwuwAn36EQ_7_4">76022</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_iIW9MoNanE6JjjK899124w">817</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_fnKCmCi7bkStR0UVifQMuQ">799-4900</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_objr7cYNxEuFYVNSKril0g">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_EGuL0jL4pUaeJiYz0cHjGA">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_xdAAzBQDF0O4zV3ciV2-sg">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_eGkB8Alv1kupWYA09s2FPw">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_o4cFhbDbHEuArPjrrEs1sA_2_0">Common Stock ($0.001 par value)</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_Qpb8yl1Mlk2kBRH7pONHQQ_2_2">LEGH</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Tc_j5S9dQYYIUyCEXNNS-k8-A_2_4">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="Duration_8_13_2026_To_8_13_2026_pxR2W-4r4kSXS7c3CECHXA"
      id="Narr_8dNQDLMtn0KQAqHshidpAQ">false</dei:EntityEmergingGrowthCompany>
</xbrl>
