Note 6 - Fair Value Measurements (Details) - Amortized Cost and Estimated Fair Value of Available-for-Sale Marketable Securities - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2015	Dec. 31, 2014
Homebuilding:
Amortized Cost Available for Sale Securities	$ 101,867	$ 151,627
OTTI Available for Sale Securities	(2,176)
Net Amortized Cost Available for Sale Securities	99,691	151,627
Fair Value Available for Sale Securities	100,418	156,140
Homebuilding [Member]
Homebuilding:
Amortized Cost Available for Sale Securities	89,841	136,669
OTTI Available for Sale Securities	(2,176)
Net Amortized Cost Available for Sale Securities	87,665	136,669
Fair Value Available for Sale Securities	89,479	140,878
Homebuilding [Member] \| Equity Securities [Member]
Homebuilding:
Amortized Cost Available for Sale Securities	89,841	116,009
OTTI Available for Sale Securities	(2,176)
Net Amortized Cost Available for Sale Securities	87,665	116,009
Fair Value Available for Sale Securities	89,479	120,274
Homebuilding [Member] \| Debt Securities [Member]
Homebuilding:
Amortized Cost Available for Sale Securities		20,660
Net Amortized Cost Available for Sale Securities		20,660
Fair Value Available for Sale Securities		20,604
Financial Services [Member]
Homebuilding:
Amortized Cost Available for Sale Securities	12,026	14,958
Net Amortized Cost Available for Sale Securities	12,026	14,958
Fair Value Available for Sale Securities	10,939	15,262
Financial Services [Member] \| Equity Securities [Member]
Homebuilding:
Amortized Cost Available for Sale Securities	12,026	9,028
Net Amortized Cost Available for Sale Securities	12,026	9,028
Fair Value Available for Sale Securities	$ 10,939	9,286
Financial Services [Member] \| Debt Securities [Member]
Homebuilding:
Amortized Cost Available for Sale Securities		5,930
Net Amortized Cost Available for Sale Securities		5,930
Fair Value Available for Sale Securities		$ 5,976

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading.

No definition available.

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- References

No definition available.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

-Subparagraph (aa)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563

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-Publisher FASB

-Name Accounting Standards Codification

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-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563

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