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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.