Note 6 - Fair Value Measurements (Details) - Quantitative Data Regarding Unobservable Inputs and Sensitivity Analysis	12 Months Ended
Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Number of homes closed per year	93
Number of homes closed per year	Increase
Number of homes closed per year	Decrease
Discount rate	10.20%
Discount rate	Decrease
Discount rate	Increase
Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Number of homes closed per year	0
Discount rate	5.20%
Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Number of homes closed per year	123
Discount rate	14.00%

Movement in fair value from decrease in input, discount rate.

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- Definition

Movement in fair value from decrease in input, number of homes closed in year.

+ References

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- Definition

Movement in fair value from increase in input, discount rate.

+ References

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Movement in fair value from increase in input, number of homes closed in year.

+ References

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- Definition

Number Of Homes Closed In Period Inputs

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Weighted Average Number Of Homes Closed In Period

+ 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)

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The average discount rate applied to insurance contracts to determine future policy benefits to be paid to or on behalf of policyholders.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 40

-Section 50

-Paragraph 5

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6482714&loc=d3e14881-158438

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