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Note 12 - Reduction of Inventory to Fair Value (Details)
$ in Thousands
 12 Months Ended 24 Months Ended
Oct. 31, 2015
USD ($)
Oct. 31, 2014
USD ($)
Oct. 31, 2013
USD ($)
Oct. 31, 2015
USD ($)
Note 12 - Reduction of Inventory to Fair Value (Details) [Line Items]        
Number of Communities Evaluated for Impairment 523 495   523
Number of Communities Performed Detailed Impairment Calculations 26 12   26
Carrying Value of Communities Tested for Impairment (in Dollars) $ 108,100 $ 28,200   $ 108,100
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less Than 20% 12 4   12
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less Than 20% (in Dollars) $ 54,900 $ 23,100   $ 54,900
Percentage Undiscounted Cash Flow Exceeds Carrying Amount 20.00% 20.00%    
Impairment of Real Estate (in Dollars) $ 7,300 $ 1,200 $ 2,400  
Land Option Write-offs (in Dollars) 4,700 4,000 2,600  
Homebuilding [Member]        
Note 12 - Reduction of Inventory to Fair Value (Details) [Line Items]        
Impairment of Real Estate (in Dollars) 7,300 1,200 2,400 [1]  
Land Option Write-offs (in Dollars) 4,700 4,000 2,600  
Homebuilding [Member] | Mid-Atlantic [Member]        
Note 12 - Reduction of Inventory to Fair Value (Details) [Line Items]        
Impairment of Real Estate (in Dollars) 900 0 2 [1]  
Land Option Write-offs (in Dollars) 200 200 100  
Homebuilding [Member] | Southeast [Member]        
Note 12 - Reduction of Inventory to Fair Value (Details) [Line Items]        
Impairment of Real Estate (in Dollars) 2,500 0 17 [1]  
Land Option Write-offs (in Dollars) $ 1,300 $ 700 $ 200  
Fourth Quarter [Member]        
Note 12 - Reduction of Inventory to Fair Value (Details) [Line Items]        
Number of Communities Performed Detailed Impairment Calculations 14 4   14
Carrying Value of Communities Tested for Impairment (in Dollars) $ 37,700 $ 7,100   $ 37,700
Minimum [Member] | Homebuilding [Member] | Real Estate Inventory [Member]        
Note 12 - Reduction of Inventory to Fair Value (Details) [Line Items]        
Fair Value Inputs, Discount Rate 17.30% 16.80% 18.00% 16.80%
Maximum [Member] | Homebuilding [Member] | Real Estate Inventory [Member]        
Note 12 - Reduction of Inventory to Fair Value (Details) [Line Items]        
Fair Value Inputs, Discount Rate 19.80% 17.30% 19.30% 19.80%
[1] During the year ended October 31, 2013, the Mid-Atlantic had an impairment totaling $2 thousand and the Southeast had an impairment totaling $17thousand.