Note 13 - Insurance and Construction Defect Claim Reserves - Summary of Insurance and Defect Claim Reserves Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Balance at beginning of period	$ 52,686	$ 50,954	$ 47,061
Expense provisions	11,213	9,697	7,531
Cash payments, net of recoveries	(8,591)	(9,215)	(3,638)
Adjustments	0	1,250	0
Balance at end of period	$ 55,308	$ 52,686	$ 50,954