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    <dei:EntityCentralIndexKey contextRef="D20260331" id="Tag2">0000357294</dei:EntityCentralIndexKey>
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    <dei:DocumentType contextRef="D20260331" id="Tag4">8-K</dei:DocumentType>
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    <dei:EntityRegistrantName contextRef="D20260331" id="Tag6">HOVNANIAN ENTERPRISES, INC.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="D20260331" id="Tag7">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="D20260331" id="Tag8">1-8551</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="D20260331" id="Tag9">22-1851059</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="D20260331" id="Tag10">90 Matawan Road, Fifth Floor</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown contextRef="D20260331" id="Tag11">Matawan</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="D20260331" id="Tag12">NJ</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="D20260331" id="Tag13">07747</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="D20260331" id="Tag14">732</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="D20260331" id="Tag15">747-7800</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="D20260331" id="Tag16">false</dei:WrittenCommunications>
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      id="Tag21">Class A Common Stock, $0.01 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
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      id="Tag22">HOV</dei:TradingSymbol>
    <dei:SecurityExchangeName
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      id="Tag23">NYSE</dei:SecurityExchangeName>
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      id="Tag24">Preferred Stock Purchase Rights</dei:Security12bTitle>
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      id="Tag26">Depositary Shares each representing 1/1,000th of a share of 7.625% Series A Preferred Stock</dei:Security12bTitle>
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      id="Tag27">HOVNP</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="D20260331_DepositarySharesEachRepresenting11000thOfAShareOf7625SeriesAPreferredStockCustomMember"
      id="Tag28">NASDAQ</dei:SecurityExchangeName>
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        <link:footnote id="footnote0" xlink:label="footnote0" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="border-right: none; border-left: none;"><xhtml:span style="border-right: none; border-left: none;">Each share of Class A Common Stock includes an associated Preferred Stock Purchase Right. Each Preferred Stock Purchase Right initially represents the right, if such Preferred Stock Purchase Right becomes exercisable, to purchase from the Company one ten-thousandth of a share of its Series B Junior Preferred Stock for each share of Common Stock. The Preferred Stock Purchase Rights currently cannot trade separately from the underlying Common Stock.</xhtml:span></xhtml:span></link:footnote>
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