Note 2 - Recently Issued Accounting Standards (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Lease, Right-of-Use Asset	$ 33,500
Operating Lease, Liability, Total	34,583
Homebuilding Segment [Member]
Operating Lease, Right-of-Use Asset	32,604
Operating Lease, Liability, Total	$ 33,460
Accounting Standards Update 2016-02 [Member] | Homebuilding Segment [Member]
Operating Lease, Right-of-Use Asset		$ 34,200
Operating Lease, Liability, Total		$ 34,300