Note 10 - Homebuilding Accrued Liabilities and Financial Services Accounts Payable and Accrued Liabilities - Homebuilding Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Warranty accrual	$ 25,666	$ 25,113	$ 21,909	$ 20,965	$ 20,770	$ 20,678
Homebuilding Segment [Member]
Customer and escrow deposits	45,539		36,144
Warranty accrual	25,666		21,909
Accrued compensation and related expenses	25,040		32,600
Accrued interest	27,734		27,734
Construction defect claim reserves	8,084		8,406
Land development and home construction accruals	7,390		8,001
Other accrued liabilities	29,446		31,518
Total accrued liabilities	$ 168,899		$ 166,312