Note 15 - Reportable Operating Segments - Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating Segment Income (Loss)
Operating Segment Income (Loss)	$ (1,370)	$ (502)
Operating Segments [Member]
Operating Segment Revenues
Operating Segment Revenues	2,298	2,248
Operating Segment Income (Loss)
Operating Segment Income (Loss)	872	907
Operating Segments [Member] | Real Estate Segment [Member]
Operating Segment Revenues
Operating Segment Revenues	0	0
Operating Segment Income (Loss)
Operating Segment Income (Loss)	(83)	(90)
Operating Segments [Member] | Leasing Segment [Member]
Operating Segment Revenues
Operating Segment Revenues	2,077	2,031
Operating Segment Income (Loss)
Operating Segment Income (Loss)	1,283	1,290
Operating Segments [Member] | Resort Amenities Segment [Member]
Operating Segment Revenues
Operating Segment Revenues	221	217
Operating Segment Income (Loss)
Operating Segment Income (Loss)	$ (328)	$ (293)