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Note 5 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment (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) - Inventory Impairments by Homebuilding Segment [Line Items]        
Dollar Amount of Impairment $ 100 $ 100 $ 200 $ 1,600
Homebuilding [Member] | Northeast [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]        
Number of Communities   1 1 3
Dollar Amount of Impairment   100 100 1,600 [1]
Pre-Impairment Value    [2] 400 [2] 200 [2] 5,600 [2]
Homebuilding [Member] | Mid-Atlantic [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]        
Number of Communities       1
Dollar Amount of Impairment       2 [1]
Pre-Impairment Value    [2]    [2]    [2] 100 [2]
Homebuilding [Member] | Midwest [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]        
Number of Communities 1   1  
Dollar Amount of Impairment 100   100    [1]
Pre-Impairment Value 500 [2]    [2] 500 [2]    [2]
Homebuilding [Member] | Southeast [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]        
Number of Communities       1
Dollar Amount of Impairment       17 [1]
Pre-Impairment Value    [2]    [2]    [2] 400 [2]
Homebuilding [Member] | Southwest [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]        
Dollar Amount of Impairment          [1]
Pre-Impairment Value    [2]    [2]    [2]    [2]
Homebuilding [Member] | West [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]        
Dollar Amount of Impairment          [1]
Pre-Impairment Value    [2]    [2]    [2]    [2]
Homebuilding [Member]
        
Note 5 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]        
Number of Communities 1 1 2 5
Dollar Amount of Impairment 100 100 200 1,600 [1]
Pre-Impairment Value $ 500 [2] $ 400 [2] $ 700 [2] $ 6,100 [2]
[1] 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.
[2] Represents carrying value, net of prior period impairments, if any, at the time of recording the applicable period's impairments.