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Note 12 - Reduction of Inventory to Fair Value (Details) - Inventory Impairments by Homebuilding Segment $ in Thousands | 12 Months Ended
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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.

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