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Note 21 - Fair Value of Financial Instruments - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019
Total Losses | $ (2,000) | $ (2,000) | $ (2,700)
Sold and Unsold Homes and Lots Under Development [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member] |  |  |
Pre-impairment value | 11,522 | 691 |
Total Losses | (2,009) | (276) |
Fair Value of Inventory | 9,513 | 415 |
Land and Land Options Held for Future Development or Sale [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member] |  |  |
Pre-impairment value | 0 | 4,089 |
Total Losses | 0 | (1,741) |
Fair Value of Inventory | $ 0 | $ 2,348 |

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- Definition This element represents the fair value of inventory whose carrying value was adjusted to fair value during the period. + References No definition available. + Details
Name: | hov_FairValueOfInventory
Namespace Prefix: | hov_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Book value of inventory prior to current period impairment charge. + References No definition available. + Details
Name: | hov_PreimpairmentValue
Namespace Prefix: | hov_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 + Details
Name: | us-gaap_ImpairmentOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=hov_SoldAndUnsoldHomesAndLotsUnderDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=hov_LandAndLandOptionsHeldForFutureDevelopmentOrSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |