Note 10 - Reportable Operating Segments - Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Real Estate Segment [Member] | Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	$ 12,054	$ 249	$ 12,377	$ 2,785
Operating Segment Income (Loss)
Operating Income (Loss)	10,438	(106)	10,344	957
Leasing Segment [Member] | Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	1,311	1,246	4,148	3,967
Operating Segment Income (Loss)
Operating Income (Loss)	855	699	2,538	2,284
Utilities Segment [Member] | Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	785	924	2,409	2,475
Operating Segment Income (Loss)
Operating Income (Loss)	206	324	635	730
Resort Amenities Segment [Member] | Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	330	320	1,105	990
Operating Segment Income (Loss)
Operating Income (Loss)	123	101	419	300
Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	14,480	2,739	20,039	10,217
Operating Segment Income (Loss)
Operating Income (Loss)	11,622	1,018	13,936	4,271
Operating Revenues	14,480	2,739	20,039	10,217
Operating Income (Loss)	$ 10,394	$ (151)	$ 9,681	$ 486