Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
OPERATING REVENUES
Operating revenues	$ 19		$ 11,600		$ 19	$ 11,600
Leasing	2,241		2,198		4,318	4,228
Total operating revenues	2,473		13,987		4,770	16,234
OPERATING COSTS AND EXPENSES
Leasing	1,039		997		1,833	1,739
General and administrative	1,035		759		2,059	1,516
Share-based compensation	806		276		1,772	654
Depreciation	238		277		491	550
Total operating costs and expenses	3,817		3,346		7,484	6,095
OPERATING INCOME (LOSS)	(1,344)		10,641		(2,714)	10,139
Other income	350		0		479	0
Pension and other post-retirement expenses	(121)		(114)		(243)	(229)
Interest expense	(2)		(2)		(3)	(3)
NET INCOME (LOSS)	(1,117)	$ (1,364)	10,525	$ (618)	(2,481)	9,907
Other comprehensive income - pension, net	82	$ 82	156	$ 156	164	312
TOTAL COMPREHENSIVE INCOME (LOSS)	$ (1,035)		$ 10,681		$ (2,317)	$ 10,219
NET INCOME (LOSS) PER COMMON SHARE-BASIC AND DILUTED (in dollars per share)	$ (0.06)		$ 0.54		$ (0.13)	$ 0.51
Resort Amenities and Other [Member]
OPERATING REVENUES
Operating revenues	$ 213		$ 189		$ 433	$ 406
OPERATING COSTS AND EXPENSES
Operating Costs and Expenses	363		330		911	840
Real Estate [Member]
OPERATING COSTS AND EXPENSES
Operating Costs and Expenses	$ 336		$ 707		$ 418	$ 796