Note 12 - Insurance and Construction Defect Claim Reserves - Summary of Insurance and Defect Claim Reserves Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Balance at beginning of period	$ 60,415	$ 55,308
Expense provisions	2,918	2,465
Cash payments, net of recoveries	(1,883)	(1,554)
Balance at end of period	$ 61,450	$ 56,219