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Note 12 - Reduction of Inventory to Fair Value (Details Textual) $ in Millions | 12 Months Ended
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Oct. 31, 2022 USD ($) | Oct. 31, 2021 USD ($) | Oct. 31, 2020 USD ($)
Number of Communities Evaluated for Impairment | 374 | 374 | 354
Number of Communities Performed Detailed Impairment Calculations | 1 | 3 | 3
Impairment of Real Estate | $ 8.4 | $ 2.0 | $ 2.0
Land Option Write Offs | 5.7 | 1.6 | 6.8
Homebuilding [Member] |  |  |
Carrying Value of Communities Tested for Impairment | 10.6 | 11.5 | 5.4
Impairment of Real Estate | $ 8.4 | $ 2.0 | $ 2.0
Number of Communities Impaired | 1 | 3 | 2
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow that Did Not Exceed Carrying Amount By Less Than 20 Percent |  |  | 1
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less than 20 Percent |  |  | $ 0.6
Percentage Undiscounted Cash Flow Exceeds Carrying Amount |  |  | 20.00%
Land Option Write Offs | $ 5.7 | $ 1.6 | $ 6.8
Homebuilding [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member] |  |  |
Inventory, Measurement Input |  | 17.3 | 17.3
Homebuilding [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member] |  |  |
Inventory, Measurement Input |  | 19.3 | 19.3

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- Definition The aggregate carrying value of communities for which detailed impairment calculatons were performed. + References No definition available. + Details
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- Definition The aggregate carrying value of communities tested for impairment which had undiscounted future cash flow that only exceeded the carrying amount by less than 20%. + References No definition available. + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. + References No definition available. + Details
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- Definition Number of communities evaluated for impairment during the period + References No definition available. + Details
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- Definition The number of communities tested for impairment which had undiscounted future cash flow that did not exceed the carrying amount by less than 20%. + References No definition available. + Details
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- Definition Percentage by which undiscounted future cash flow for communities tested for impairment exceeds carrying value under which such carrying amounts are disclosed. + References No definition available. + Details
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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 https://asc.fasb.org/extlink&oid=126954810&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 https://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 + Details
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