Note 10 - Homebuilding Accrued Liabilities and Financial Services Accounts Payable and Accrued Liabilities - Homebuilding Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Warranty accrual	$ 20,965	$ 20,770	$ 20,678	$ 17,217	$ 16,852	$ 15,328
Homebuilding Segment [Member]
Customer and escrow deposits	37,156		27,183
Warranty accrual	20,965		20,678
Accrued compensation and related expenses	20,127		27,830
Accrued interest	23,234		23,234
Land development and home construction accruals	148,199		144,566
Other accrued liabilities	39,708		36,946
Total accrued liabilities	148,199		144,566
Homebuilding Segment [Member] | Land Development and Home Construction Accruals [Member]
Land development and home construction accruals	7,009		8,695
Total accrued liabilities	$ 7,009		$ 8,695