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Note 5 - Reduction of Inventory to Fair Value (Details) (USD $)
 3 Months Ended 6 Months Ended
Apr. 30, 2014
Apr. 30, 2013
Apr. 30, 2014
Apr. 30, 2013
Oct. 31, 2013
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Number Of Communities Evaluated For Impairment 508   508    
Number of Communities Performed Detailed Impairment Calculations 7   7    
Carrying Value Of Communities Tested For Impairment $ 20,500,000   $ 20,500,000    
Number Of Communities Tested For Impairment For Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20% 2   2    
Carrying Value Of Communities Tested For Impairment For Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20% 16,200,000   16,200,000    
Percentage Undiscounted Cash Flow Exceeds Carrying Amount     20.00%    
Impairment of Real Estate 100,000 900,000 100,000 1,500,000  
Land Option Write-offs 400,000 1,300,000 1,100,000 1,400,000  
Number of Mothball Communities Sold     1    
Number of Mothballed Communities Reactivated 2        
Number of Communities Mothballed 47   47    
Inventory, Real Estate, Mothballed Communities 106,200,000   106,200,000    
Inventory, Real Estate, Mothballed Communities, Accumulated Impairment Charges 419,200,000   419,200,000    
Liabilities From Inventory Real Estate Not Owned 2,000,000   2,000,000    
Homebuilding [Member] | Lots [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Inventory Real Estate Specific Permance Options 2,200,000   2,200,000    
Homebuilding [Member] | Model Homes [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Liabilities From Inventory Real Estate Not Owned 65,300,000   65,300,000    
Inventory Real Estate Other Options 69,300,000   69,300,000    
Homebuilding [Member] | Land Parcels [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Liabilities From Inventory Real Estate Not Owned 27,600,000   27,600,000    
Inventory Real Estate Other Options 36,500,000   36,500,000    
Homebuilding [Member] | Real Estate Inventory [Member] | Fair Value, Measurements, Nonrecurring [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Fair Value Inputs, Discount Rate     0.00%    
Homebuilding [Member] | Real Estate Inventory [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Fair Value Inputs, Discount Rate       18.00%  
Homebuilding [Member] | Real Estate Inventory [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Fair Value Inputs, Discount Rate       18.80%  
Homebuilding [Member] | Mid-Atlantic [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Impairment of Real Estate        [1] 2,000  
Land Option Write-offs    [2]    [2] 100,000 [2]    [2]  
Homebuilding [Member] | Southeast [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Impairment of Real Estate        [1] 17,000  
Land Option Write-offs 200,000 [2] 100,000 [2] 300,000 [2] 100,000 [2]  
Homebuilding [Member] | Southwest [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Impairment of Real Estate        [1]    
Land Option Write-offs    [2] 1,100,000 [2] 100,000 [2] 1,100,000 [2]  
Homebuilding [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Impairment of Real Estate 100,000 900,000 100,000 [1] 1,500,000  
Land Option Write-offs 400,000 [2] 1,300,000 [2] 1,100,000 [2] 1,400,000 [2]  
Inventory Real Estate Specific Permance Options 2,168,000   2,168,000   792,000 [3]
Liabilities From Inventory Real Estate Not Owned 94,923,000   94,923,000   87,866,000 [3]
Inventory Real Estate Other Options 105,796,000   105,796,000   100,071,000 [3]
Mid-Atlantic [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Land Option Write-offs 19,000 2,000   8,000  
Southwest [Member]
          
Note 5 - Reduction of Inventory to Fair Value (Details) [Line Items]          
Land Option Write-offs 57,000        
Land Option, Recoveries $ 68,000        
[1] During the six months ended April 30, 2013, the Mid-Atlantic had an impairment totaling $2 thousand and the Southeast had an impairment totaling $17 thousand.
[2] During the three months ended April 30, 2014, there were write-offs in the Mid-Atlantic totaling $19 thousand and in the Southwest there were recoveries of $68 thousand, partially offset by write-offs of $57 thousand. During the three and six months ended April 30, 2013, there were write-offs in the Mid-Atlantic totaling $2 thousand and $8 thousand, respectively.
[3] Derived from the audited balance sheet as of October 31, 2013.