Note 10 - Homebuilding Prepaid and Other Assets - Summary of Homebuilding Prepaid and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Operating lease right-of-use asset (Note 2 and Note 11)		$ 33,500
Homebuilding Segment [Member]
Operating lease right-of-use asset (Note 2 and Note 11)	$ 30,277		$ 0
Land option deposits	27,361		23,805
Prepaid expenses	7,294		7,324
Goodwill	6,008		6,008
Deferred debt issuance costs on revolving credit facility, net	6,130		7,662
Other	1,288		995
Total	$ 78,358		$ 45,794	$ 41,439	$ 75,666