Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
OPERATING REVENUES
Leasing		$ 8,461	$ 8,513
Total Operating Revenues	[1]	10,915	20,960
OPERATING COSTS AND EXPENSES
Leasing		4,420	3,598
General and administrative		3,998	2,795
Share-based compensation		2,846	1,278
Depreciation		869	1,109
Total Operating Costs and Expenses		14,260	11,353
OPERATING INCOME (LOSS)		(3,345)	9,607
Other income		707	71
Pension and other post-retirement expenses		(436)	(7,885)
Interest expense		(6)	(6)
NET INCOME (LOSS)		(3,080)	1,787
Pension, net of income taxes of $0		1,370	7,381
TOTAL COMPREHENSIVE INCOME (LOSS)		$ (1,710)	$ 9,168
INCOME (LOSS) PER COMMON SHARE--BASIC AND DILUTED (in dollars per share)		$ (150)	$ 90.00
Real Estate [Member]
OPERATING REVENUES
Operating revenues		$ 1,626	$ 11,600
OPERATING COSTS AND EXPENSES
Operating Costs and Expenses		595	1,026
Resort Amenities and Other [Member]
OPERATING REVENUES
Operating revenues		828	847
OPERATING COSTS AND EXPENSES
Operating Costs and Expenses		$ 1,532	$ 1,547

[1] Amounts are principally revenues from external customers and exclude equity in earnings of affiliates.