Note 7 - Investments in Unconsolidated Land Development and Homebuilding Joint Ventures (Details) - Combined Statements of Operations for Unconsolidated Land Development and Homebuilding Joint Ventures - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Combined Statements of Operations for Unconsolidated Land Development and Homebuilding Joint Ventures [Abstract]
Revenues	$ 43,806	$ 39,898	$ 32,546
Cost of sales and expenses	(33,587)	(47,519)	(30,465)
Income (loss) of unconsolidated joint ventures	10,219	(7,621)	2,081
Income (loss) from unconsolidated joint ventures reflected in the accompanying consolidated statements of operations	$ 1,966	$ (668)	$ 949