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Note 4 - Reduction of Inventory to Fair Value (Details Textual) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Apr. 30, 2016 USD ($) | Apr. 30, 2015 USD ($) | Apr. 30, 2016 USD ($) | Apr. 30, 2015 USD ($) | 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 | $ 98,200 |  | $ 98,200 |  | $ 95,900 |
Liabilities from Inventory Real Estate Not Owned | 89,100 |  | 89,100 |  | 87,900 |
Homebuilding [Member] | Land Banking Arrangement [Member] |  |  |  |  |  |
Inventory Real Estate, Other Options | 214,600 |  | 214,600 |  | 25,100 |
Liabilities from Inventory Real Estate Not Owned | 131,200 |  | 131,200 |  | 16,800 |
Homebuilding [Member] |  |  |  |  |  |
Liabilities from Inventory Real Estate Not Owned | $ 220,348 |  | $ 220,348 |  | $ 105,856 | [1]
Number of Communities Evaluated for Impairment | 478 | 508 | 478 | 508 |  |
Number of Communities Performed Detailed Impairment Calculations | 20 | 15 | 20 | 15 |  |
Carrying Value of Communities Tested for Impairment | $ 89,000 | $ 77,400 | $ 89,000 | $ 77,400 |  |
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20 Percent | 9 | 7 | 9 | 7 |  |
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less than 20 Percent | $ 43,500 | $ 33,000 | $ 43,500 | $ 33,000 |  |
Percentage Undiscounted Cash Flow Exceeds Carrying Amount |  |  | 20.00% |  |  |
Impairment of Real Estate | $ 5,400 | $ 3,500 | $ 15,100 | $ 4,400 |  |
Number of Communities Impaired | 4 | 4 | 10 | 5 |  |
PreImpairment Value | $ 16,700 | $ 11,000 | $ 45,400 | $ 16,700 |  |
Land Option Write Offs | $ 4,300 | $ 800 | $ 6,300 | $ 2,100 |  |
Number of Walk Away Lots | 2,263 | 455 | 3,519 | 2,155 |  |
Number of Communities Mothballed | 29 |  | 29 |  | 31 |
Inventory Real Estate Mothballed Communities | $ 75,700 |  | $ 75,700 |  | $ 103,000 |
Inventory Real Estate Mothballed Communities Accumulated Impairment Charges | $ 296,800 |  | $ 296,800 |  | 334,500 |
Inventory Real Estate Specific Performance Options |  |  |  |  | 1,200 |
Liabilities from Inventory Real Estate Specific Performance Options |  |  |  |  | $ 1,200 |
[1] | Derived from the audited balance sheet as of October 31, 2015.

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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 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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