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Note 4 - Reduction of Inventory to Fair Value (Details Textual) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Apr. 30, 2019 USD ($) | Apr. 30, 2018 USD ($) | Apr. 30, 2019 USD ($) | Apr. 30, 2018 USD ($) | Oct. 31, 2018 USD ($)
Number of Communities Evaluated for Impairment |  |  | 398 | 377 |
Number of Communities Performed Detailed Impairment Calculations |  |  | 6 | 5 |
Carrying Value of Communities Tested for Impairment |  |  | $ 51,600 | $ 11,200 |
Impairment of Real Estate | $ 1,000 | $ 2,100 | 1,000 | 2,100 |
Homebuilding [Member] |  |  |  |  |
Impairment of Real Estate | $ 1,000 | $ 2,100 | $ 1,000 | $ 2,100 |
Number of Communities Impaired | 2 | 5 | 3 | 5 |
PreImpairment Value | $ 3,900 | $ 11,200 | $ 10,200 | $ 11,200 |
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20 Percent |  |  | 3 | 0 |
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less than 20 Percent |  |  | $ 41,300 |  |
Percentage Undiscounted Cash Flow Exceeds Carrying Amount |  |  | 20.00% | 20.00% |
Land Option Write Offs | $ 500 | $ 600 | $ 1,200 | $ 1,000 |
Number of Walk Away Lots | 680 | 714 | 2,170 | 1,341 |
Number of Communities Mothballed During the Period |  |  | 0 |  |
Number of Previously Mothballed Communities Sold During the Period |  |  | 2 |  |
Number of Mothballed Communities Reactivated |  |  | 2 |  |
Number of Communities Mothballed | 14 |  | 14 |  | 18
Inventory Real Estate Mothballed Communities | $ 14,200 |  | $ 14,200 |  | $ 24,500
Inventory Real Estate Mothballed Communities Accumulated Impairment Charges | 146,900 |  | 146,900 |  | 186,100
Liabilities from Inventory Real Estate Not Owned | 123,348 |  | 123,348 |  | 63,387
Homebuilding [Member] | Model Sale Leaseback Financing Arrangements [Member] |  |  |  |  |
Inventory Real Estate, Other Options | 58,400 |  | 58,400 |  | 50,500
Liabilities from Inventory Real Estate Not Owned | 52,100 |  | 52,100 |  | 43,900
Homebuilding [Member] | Land Banking Arrangement [Member] |  |  |  |  |
Inventory Real Estate, Other Options | 96,000 |  | 96,000 |  | 37,400
Liabilities from Inventory Real Estate Not Owned | $ 71,200 |  | $ 71,200 |  | $ 19,500
Minimum [Member] | Homebuilding [Member] | Measurement Input, Discount Rate [Member] |  |  |  |  |
Inventory, Measurement Input |  |  | 18 | 16.8 |
Maximum [Member] | Homebuilding [Member] | Measurement Input, Discount Rate [Member] |  |  |  |  |
Inventory, Measurement Input |  |  | 18.3 | 19.8 |

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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 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=118932676&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
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