Note 11 - Reportable Operating Segments - Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Segment Income (Loss)
OPERATING LOSS	$ (994)	$ (784)
Operating Segments [Member]
Operating Segment Revenues
Operating revenues	2,035	2,334
Operating Segment Income (Loss)
OPERATING LOSS	514	1,039
Operating Segments [Member] | Real Estate Segment [Member]
Operating Segment Revenues
Operating revenues	69	157
Operating Segment Income (Loss)
OPERATING LOSS	(106)	(107)
Operating Segments [Member] | Leasing Segment [Member]
Operating Segment Revenues
Operating revenues	1,736	1,916
Operating Segment Income (Loss)
OPERATING LOSS	960	1,196
Operating Segments [Member] | Resort Amenities Segment [Member]
Operating Segment Revenues
Operating revenues	230	261
Operating Segment Income (Loss)
OPERATING LOSS	$ (340)	$ (50)