Note 15 - Reportable Operating Segments - Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating Segment Revenues
Operating Segment Revenues			$ 19	$ 11,600
Operating Segment Income (Loss)
Operating Segment Income (Loss)	$ (1,189)	$ (8)	(3,902)	10,131
Operating Segments [Member]
Operating Segment Revenues
Operating Segment Revenues	2,101	2,551	6,872	18,787
Operating Segment Income (Loss)
Operating Segment Income (Loss)	641	1,235	2,249	14,096
Operating Segments [Member] | Real Estate Segment [Member]
Operating Segment Revenues
Operating Segment Revenues	0	0	19	11,600
Operating Segment Income (Loss)
Operating Segment Income (Loss)	(108)	(117)	(507)	10,687
Operating Segments [Member] | Leasing Segment [Member]
Operating Segment Revenues
Operating Segment Revenues	1,931	2,330	6,249	6,559
Operating Segment Income (Loss)
Operating Segment Income (Loss)	780	1,461	3,265	3,951
Operating Segments [Member] | Resort Amenities Segment [Member]
Operating Segment Revenues
Operating Segment Revenues	170	221	604	628
Operating Segment Income (Loss)
Operating Segment Income (Loss)	$ (31)	$ (109)	$ (509)	$ (542)