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Note 4 - Reduction of Inventory to Fair Value (Details)
 3 Months Ended 9 Months Ended
Jul. 31, 2015
USD ($)
Jul. 31, 2014
USD ($)
Jul. 31, 2015
USD ($)
Jul. 31, 2014
USD ($)
Oct. 31, 2014
USD ($)
Note 4 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Impairment of Real Estate $ 0 $ 100,000 $ 4,400,000 $ 200,000  
Number Of Communities Evaluated For Impairment 522   522    
Number of Communities Performed Detailed Impairment Calculations 17   17    
Carrying Value Of Communities Tested For Impairment $ 86,700,000   $ 86,700,000    
Number Of Communities Tested For Impairment For Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20% 8   8    
Carrying Value Of Communities Tested For Impairment For Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20% $ 42,700,000   $ 42,700,000    
Percentage Undiscounted Cash Flow Exceeds Carrying Amount     20.00%    
Number of Communities Impaired   1 5 2  
Pre Impairment Value   $ 500,000 $ 16,700,000 $ 700,000  
Land Option Write-offs $ 1,100,000 $ 600,000 $ 3,200,000 $ 1,700,000  
Number Of Walk Away Lots 1,035 1,165 3,190 3,595  
Number of Mothballed Communities Reactivated     14    
Number of Communities Mothballed 31   31    
Inventory, Real Estate, Mothballed Communities $ 99,900,000   $ 99,900,000    
Inventory, Real Estate, Mothballed Communities, Accumulated Impairment Charges 334,500,000   334,500,000    
Inventory Real Estate Specific Performance Options 0   0    
Homebuilding [Member]          
Note 4 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Inventory Real Estate Specific Performance Options [1]         $ 3,479,000
Inventory Real Estate Other Options 109,355,000   109,355,000   105,374,000 [1]
Liabilities From Inventory Real Estate Not Owned $ 98,406,000   98,406,000   $ 92,381,000 [1]
Homebuilding [Member] | Real Estate Inventory [Member]          
Note 4 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Fair Value Inputs, Discount Rate 0.00% 16.80%   16.80%  
Model Sale Leaseback Financing Arrangements [Member] | Homebuilding [Member]          
Note 4 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Inventory Real Estate Other Options $ 90,200,000   90,200,000    
Liabilities From Inventory Real Estate Not Owned 84,700,000   84,700,000    
Land Banking Arrangement [Member] | Homebuilding [Member]          
Note 4 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Inventory Real Estate Other Options 19,200,000   19,200,000    
Liabilities From Inventory Real Estate Not Owned $ 13,700,000   $ 13,700,000    
Minimum [Member] | Homebuilding [Member] | Real Estate Inventory [Member]          
Note 4 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Fair Value Inputs, Discount Rate     17.50%    
Maximum [Member] | Homebuilding [Member] | Real Estate Inventory [Member]          
Note 4 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Fair Value Inputs, Discount Rate     19.80%    
[1] Derived from the audited balance sheet as of October 31, 2014.