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Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment
$ in Thousands
 12 Months Ended
Oct. 31, 2015
USD ($)
Oct. 31, 2014
USD ($)
Oct. 31, 2013
USD ($)
Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]      
Dollar amount of impairment $ 7,300 $ 1,200 $ 2,400
Homebuilding [Member]      
Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]      
Number of communities 12 5 6
Dollar amount of impairment $ 7,300 $ 1,200 $ 2,400 [1]
Pre-impairment value [2] $ 29,400 $ 4,400 $ 8,200
Homebuilding [Member] | Northeast [Member]      
Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]      
Number of communities 2 2 4
Dollar amount of impairment $ 800 $ 300 $ 2,400 [1]
Pre-impairment value [2] $ 900 $ 600 $ 7,700
Homebuilding [Member] | Mid-Atlantic [Member]      
Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]      
Number of communities 1 0 1
Dollar amount of impairment $ 900 $ 0 $ 2 [1]
Pre-impairment value [2] $ 2,500 $ 0 $ 100
Homebuilding [Member] | Midwest [Member]      
Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]      
Number of communities 4 3 0
Dollar amount of impairment $ 1,300 $ 900 $ 0 [1]
Pre-impairment value [2] $ 8,400 $ 3,800 $ 0
Homebuilding [Member] | Southeast [Member]      
Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]      
Number of communities 4 0 1
Dollar amount of impairment $ 2,500 $ 0 $ 17 [1]
Pre-impairment value [2] $ 10,100 $ 0 $ 400
Homebuilding [Member] | Southwest [Member]      
Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]      
Number of communities 0 0 0
Dollar amount of impairment $ 0 $ 0 $ 0 [1]
Pre-impairment value [2] $ 0 $ 0 $ 0
Homebuilding [Member] | West [Member]      
Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment [Line Items]      
Number of communities 1 0 0
Dollar amount of impairment $ 1,800 $ 0 $ 0 [1]
Pre-impairment value [2] $ 7,500 $ 0 $ 0
[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.
[2] Represents carrying value, net of prior period impairments, if any, at the time of recording the applicable period's impairments.