The amount of impairment incurred on real estate homes in the period.

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Represents deposits for real estate inventory which is refundable.

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Represents the number of impaired homebuilding projects.

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Value of input used to measure real estate inventory.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Note 4 - Real Estate Inventories (Details Textual) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Inventory, Real Estate, Refundable	$ 100				$ 100				$ 100	$ 100
Impairment of Real Estate									19,000	10,200	$ 10,000
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	$ (1,349)	$ 1,528	$ (41,222)	$ (18,413)	$ (6,952)	$ (4,778)	$ 2,565	$ (2,651)	(59,456)	$ (11,816)	$ (20,305)
Number of Homebuilding Projects Impaired										2	2
Impairment of Long-Lived Assets to be Disposed of									14,098	$ 94	$ 206
Home Building [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total									(60,876)	(13,868)	(24,706)
Impairment of Real Estate Homes										8,300	$ 10,000
Land [Member]
Impairment of Real Estate										$ 1,900
Luxury Condominium Project in Scottsdale, Arizona [Member]
Impairment of Long-Lived Assets to be Disposed of									$ 14,000
Measurement Input, Discount Rate [Member] \| Minimum [Member]
Real Estate Inventory, Measurement Input	0.14				0.17				0.14	0.17	0.09
Measurement Input, Discount Rate [Member] \| Maximum [Member]
Real Estate Inventory, Measurement Input	0.26				0.19				0.26	0.19	0.16
California 1 [Member]
Impairment of Real Estate Homes									$ 17,800	$ 1,700
California 1 [Member] \| Home Building [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total									(35,609)	(5,724)	$ (19,594)
California 1 [Member] \| Multi-family Community in Sacramento Area [Member]
Impairment of Real Estate Homes									6,500
California 1 [Member] \| Townhouse Community Within Sourthern California's Inland Empire [Member]
Impairment of Real Estate Homes									6,200
California 1 [Member] \| Attached-product Community in San Diego [Member]
Impairment of Real Estate Homes									4,500
California 1 [Member] \| Multi-family Condominium Community in Los Angeles [Member]
Impairment of Real Estate Homes									600
Arizona 1 [Member]
Impairment of Real Estate Homes									1,200	6,600
Arizona 1 [Member] \| Home Building [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total									(25,267)	(8,144)	(5,112)
Home Building Segment [Member] \| California 1 [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total									(17,800)	(3,600)	$ (10,000)
Home Building Segment [Member] \| Arizona 1 [Member]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total									$ (1,200)	$ (6,600)