Note 12 - Insurance and Construction Defect Claim Reserves - Summary of Insurance and Defect Claim Reserves Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Balance at beginning of period	$ 51,851	$ 46,379	$ 50,954	$ 45,811
Expense provisions	2,385	1,946	4,501	3,334
Cash payments, net of recoveries	(4,589)	(1,425)	(5,808)	(2,245)
Balance at end of period	$ 49,647	$ 46,900	$ 49,647	$ 46,900