Note 13 - 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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Balance at beginning of period	$ 56,219	$ 53,395	$ 55,308	$ 52,686
Expense provisions	2,745	2,733	5,210	5,037
Cash payments, net of recoveries	(2,147)	(5,421)	(3,701)	(7,016)
Balance at end of period	$ 56,817	$ 50,707	$ 56,817	$ 50,707