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Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Jul. 31, 2014
Jul. 31, 2013
Jul. 31, 2014
Jul. 31, 2013
Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From [Line Items]        
Dollar Amount of Write-Offs $ 600 $ 500 $ 1,700 $ 1,900
Homebuilding [Member] | Northeast [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From [Line Items]        
Number of Walk-Away Lots   73 239 373
Dollar Amount of Write-Offs 100 [1] 200 [1],[2] 600 400 [1],[2]
Homebuilding [Member] | Mid-Atlantic [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From [Line Items]        
Number of Walk-Away Lots 276   797 164
Dollar Amount of Write-Offs 100 [1]    [1],[2] 200 23 [1],[2]
Homebuilding [Member] | Midwest [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From [Line Items]        
Number of Walk-Away Lots 105 13 508 13
Dollar Amount of Write-Offs 100 [1] 38 [1],[2] 200 38 [1],[2]
Homebuilding [Member] | Southeast [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From [Line Items]        
Number of Walk-Away Lots 472 113 1,397 113
Dollar Amount of Write-Offs 200 [1] 100 [1],[2] 500 200 [1],[2]
Homebuilding [Member] | Southwest [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From [Line Items]        
Number of Walk-Away Lots 312 12 654 246
Dollar Amount of Write-Offs 100 [1] 200 [1],[2] 200 1,300 [1],[2]
Homebuilding [Member] | West [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From [Line Items]        
Dollar Amount of Write-Offs    [1]    [1],[2]      [1],[2]
Homebuilding [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Write-Offs and Lots Walked Away From [Line Items]        
Number of Walk-Away Lots 1,165 211 3,595 909
Dollar Amount of Write-Offs $ 600 [1] $ 500 [1],[2] $ 1,700 $ 1,900 [1],[2]
[1] Represents carrying value, net of prior period impairments, if any, at the time of recording the applicable period's impairments.
[2] During the nine months ended July 31, 2013, the Mid-Atlantic had an impairment totaling $2 thousand and the Southeast had an impairment totaling $17 thousand.