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Note 12 - Reduction of Inventory to Fair Value (Details Textual) $ in Millions	12 Months Ended
	Oct. 31, 2016 USD ($)	Oct. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)
Number of Communities Evaluated for Impairment	413	523
Number of Communities Performed Detailed Impairment Calculations	30	26
Carrying Value of Communities Tested for Impairment	$ 125.4	$ 108.1
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20 Percent	9	12
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less than 20 Percent	$ 43.5	$ 54.9
Percentage Undiscounted Cash Flow Exceeds Carrying Amount	20.00%
Impairment of Real Estate	$ 24.5	7.3	$ 1.2
Land Option Write Offs	8.9	4.7	4.0
Homebuilding [Member]
Impairment of Real Estate	24.5	7.3	1.2
Land Option Write Offs	$ 8.9	$ 4.7	$ 4.0
Homebuilding [Member] | Real Estate Inventory [Member] | Minimum [Member]
Fair Value Inputs, Discount Rate	16.80%	17.30%	16.80%
Homebuilding [Member] | Real Estate Inventory [Member] | Maximum [Member]
Fair Value Inputs, Discount Rate	18.80%	19.80%	17.30%

X

- Definition

The aggregate carrying value of communities for which detailed impairment calculatons were performed.

+ References

No definition available.

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- Definition

The aggregate carrying value of communities tested for impairment which had undiscounted future cash flow that only exceeded the carrying amount by less than 20%.

+ References

No definition available.

+ Details

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- Definition

The charge against earnings in the period to write off costs associated with land options that were terminated.

+ References

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- Definition

Number of communities evaluated for impairment during the period

+ References

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Number of communities for which detailed impairment calculations were performed during the period.

+ References

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- Definition

Represents the number of communities tested for impairment which had undiscounted future cash flow that only exceeded the carrying amount by less than 20%.

+ References

No definition available.

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- Definition

Percentage by which undiscounted future cash flow for communities tested for impairment exceeds carrying value under which such carrying amounts are disclosed.

+ References

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2921-110230

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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