Note 12 - Reportable Operating Segments - Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating Segment Income (Loss)
Operating income (loss)	$ (8)	$ 5	$ 10,131	$ 1,449
Operating Segments [Member]
Operating Segment Revenues
Operating revenues	2,551	2,437	18,787	9,446
Operating Segment Income (Loss)
Operating income (loss)	1,235	1,282	14,096	5,339
Operating Segments [Member] | Real Estate Segment [Member]
Operating Segment Revenues
Operating revenues	0	0	11,600	2,700
Operating Segment Income (Loss)
Operating income (loss)	(117)	(67)	10,687	2,082
Operating Segments [Member] | Leasing Segment [Member]
Operating Segment Revenues
Operating revenues	2,330	2,184	6,559	5,947
Operating Segment Income (Loss)
Operating income (loss)	1,461	1,400	3,951	3,452
Operating Segments [Member] | Resort Amenities Segment [Member]
Operating Segment Revenues
Operating revenues	221	253	628	799
Operating Segment Income (Loss)
Operating income (loss)	$ (109)	$ (51)	$ (542)	$ (195)