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Note 4 - Reduction of Inventory to Fair Value (Details Textual) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jul. 31, 2016 USD ($) | Jul. 31, 2015 USD ($) | Jul. 31, 2016 USD ($) | Jul. 31, 2015 USD ($) | Oct. 31, 2015 USD ($)
Homebuilding [Member] | Real Estate Inventory [Member] | Minimum [Member] |  |  |  |  |  |
Fair Value Inputs, Discount Rate |  |  | 16.80% | 17.50% |  |
Homebuilding [Member] | Real Estate Inventory [Member] | Maximum [Member] |  |  |  |  |  |
Fair Value Inputs, Discount Rate |  |  | 18.50% | 19.80% |  |
Homebuilding [Member] | Model Sale Leaseback Financing Arrangements [Member] |  |  |  |  |  |
Inventory Real Estate, Other Options | $ 96,900,000 |  | $ 96,900,000 |  | $ 95,900,000 |
Liabilities from Inventory Real Estate Not Owned | 87,300,000 |  | 87,300,000 |  | 87,900,000 |
Homebuilding [Member] | Land Banking Arrangement [Member] |  |  |  |  |  |
Inventory Real Estate, Other Options | 183,800,000 |  | 183,800,000 |  | 25,100,000 |
Liabilities from Inventory Real Estate Not Owned | 108,500,000 |  | 108,500,000 |  | 16,800,000 |
Homebuilding [Member] |  |  |  |  |  |
Liabilities from Inventory Real Estate Not Owned | 195,755,000 |  | 195,755,000 |  | 105,856,000 | [1]
Impairment of Real Estate | 1,300,000 | $ 0 | 16,400,000 | $ 4,400,000 |  |
Inventory Real Estate Specific Performance Options | $ 0 |  | $ 0 |  | $ 1,200,000 |
Number of Communities Evaluated for Impairment |  |  | 418 | 522 |  |
Number of Communities Performed Detailed Impairment Calculations |  |  | 22 | 17 |  |
Carrying Value of Communities Tested for Impairment |  |  | $ 95,500,000 | $ 86,700,000 |  |
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20 Percent |  |  | 11 | 8 |  |
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less than 20 Percent |  |  | $ 47,800,000 | $ 42,700,000 |  |
Percentage Undiscounted Cash Flow Exceeds Carrying Amount |  |  | 20.00% |  |  |
Number of Communities Impaired | 2 |  | 12 | 5 |  |
PreImpairment Value | $ 5,400,000 |  | $ 50,800,000 | $ 16,700,000 |  |
Land Option Write Offs | $ 200,000 | $ 1,100,000 | $ 6,500,000 | $ 3,200,000 |  |
Number of Walk Away Lots | 1,570 | 1,035 | 5,089 | 3,190 |  |
Number of Communities Mothballed | 28 |  | 28 |  | 31 |
Inventory Real Estate Mothballed Communities | $ 74,900,000 |  | $ 74,900,000 |  | $ 103,000,000 |
Inventory Real Estate Mothballed Communities Accumulated Impairment Charges | $ 293,100,000 |  | $ 293,100,000 |  | 334,500,000 |
Liabilities from Inventory Real Estate Specific Performance Options |  |  |  |  | $ 1,200,000 |
[1] | Derived from the audited balance sheet as of October 31, 2015.

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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 net book value of mothballed communities at the end of the period. + References No definition available. + Details
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- Definition Includes the liabilities for the inventory for which we do not have title related to the remaining exercise price of land and lot option purchases contracts; variable interest entities when we are the primary beneficiary; and model sale leaseback financing arrangements. + References No definition available. + Details
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- Definition Represents the number 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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