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Note 9 - Leases (Details Textual) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2021 USD ($) | Apr. 30, 2021 USD ($)
Increase (Decrease) in Operating Lease, Right-of-Use Asset | $ 2.3 | $ 4.0
Increase (Decrease) in Operating Lease Liability | $ 2.3 | $ 4.0
Minimum [Member] | Office Leases [Member] |  |
Lessee, Operating Lease, Term of Contract (Year) | 3 years | 3 years
Maximum [Member] | Office Leases [Member] |  |
Lessee, Operating Lease, Term of Contract (Year) | 5 years | 5 years

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- Definition The increase (decrease) during the reporting period in lessee's right to use underlying asset under operating lease. + References No definition available. + Details
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Namespace Prefix: | hov_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of increase (decrease) in obligation for operating lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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Period Type: | duration

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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | instant

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

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

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