Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
OPERATING REVENUES
Leasing	$ 1,436,000	$ 2,038,000	$ 3,172,000	$ 3,954,000
Total operating revenues	1,710,000	2,495,000	3,744,000	4,829,000
OPERATING COSTS AND EXPENSES
Leasing	827,000	714,000	1,603,000	1,439,000
General and administrative	559,000	510,000	1,318,000	1,350,000
Share-based compensation	402,000	374,000	827,000	972,000
Depreciation	323,000	360,000	645,000	722,000
Total operating costs and expenses	2,472,000	2,421,000	5,500,000	5,537,000
OPERATING INCOME (LOSS)	(762,000)	74,000	(1,756,000)	(708,000)
Other income	894,000		894,000
Pension and other post-retirement expenses	(117,000)	(256,000)	(234,000)	(509,000)
Interest expense	(30,000)	(63,000)	(76,000)	(110,000)
LOSS FROM CONTINUING OPERATIONS	(15,000)	(245,000)	(1,172,000)	(1,327,000)
Income (Loss) from discontinued operations, net	(142,000)	64,000	(59,000)	52,000
NET LOSS	(157,000)	(181,000)	(1,231,000)	(1,275,000)
Other comprehensive income - pension, net	206,000	211,000	412,000	423,000
COMPREHENSIVE INCOME (LOSS)	$ 49,000	$ 30,000	$ (819,000)	$ (852,000)
EARNINGS (LOSS) PER COMMON SHARE-BASIC AND DILUTED
Loss from Continuing Operations (in dollars per share)		$ (0.01)	$ (0.06)	$ (0.07)
Income (Loss) from Discontinued Operations (in dollars per share)	(0.01)
Net Loss (in dollars per share)	$ (0.01)	$ (0.01)	$ (0.06)	$ (0.07)
Real Estate [Member]
OPERATING REVENUES
Operating revenues	$ 90,000	$ 209,000	$ 158,000	$ 366,000
OPERATING COSTS AND EXPENSES
Operating Costs and Expenses	192,000	255,000	367,000	521,000
Resort Amenities and Other [Member]
OPERATING REVENUES
Operating revenues	184,000	248,000	414,000	509,000
OPERATING COSTS AND EXPENSES
Operating Costs and Expenses	$ 169,000	$ 208,000	$ 740,000	$ 533,000