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Note 7 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 172 Months Ended
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Apr. 30, 2023 | Apr. 30, 2023
Great Notch Condominium Claims[Member] |  |
Loss Contingency, Damages Sought, Value | $ 119.5 |
Spill Fund Lawsuit [Member] |  |
Loss Contingency, Damages Sought, Value |  | $ 5.3

X
- Definition The value (monetary amount) of the award the plaintiff seeks in the legal matter. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-9 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_LitigationCaseAxis=hov_SpillFundLawsuitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |