Note 10 - Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Real Estate Segment [Member] | Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	$ 168	$ 112
Operating Segment Income (Loss)
Operating Income (Loss)	(132)	(56)
Leasing Segment [Member] | Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	1,615	1,415
Operating Segment Income (Loss)
Operating Income (Loss)	903	883
Utilities Segment [Member] | Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	847	817
Operating Segment Income (Loss)
Operating Income (Loss)	216	205
Resort Amenities Segment [Member] | Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	346	450
Operating Segment Income (Loss)
Operating Income (Loss)	149	237
Operating Segments [Member]
Operating Segment Revenues
Operating Revenues	2,976	2,794
Operating Segment Income (Loss)
Operating Income (Loss)	1,136	1,269
Operating Revenues	2,976	2,794
Operating Income (Loss)	$ (777)	$ (496)