CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
REVENUES
Real estate rentals and related revenue	$ 18,786	$ 18,092
Total revenues	18,786	18,092
Operating Expenses:
Rental and other properties	13,474	11,075
Adviser's base fee	165,000	165,000
General and administrative	81,090	84,643
Professional fees and expenses	79,431	102,252
Directors' fees and expenses	17,500	20,500
Depreciation expense	3,849	3,849
Interest expense	15,015	20,973
Total expenses	375,359	408,292
Loss before other income, income taxes and gain on sale of real estate	(356,573)	(390,200)
Net realized and unrealized gains (losses) from investments in marketable securities	180,474	(20,761)
Equity loss from operations of residential real estate partnership	0	(143,889)
Income from other investments, net	77,855	217,703
Interest, dividend and other income	85,463	90,608
Total other income	343,792	143,661
Loss before income taxes and gain on sale of real estate	(12,780)	(246,539)
Benefit from (provision for) income taxes	4,472	(27,205)
Net loss before gain on sale of real estate	(8,308)	(273,744)
Gain on sale of real estate, net of incentive fee	0	5,473,887
Net (loss) income	(8,308)	5,200,143
Gain attributable to noncontrolling interest	(2,808)	(9,250)
Net (loss) income attributable to the Company	$ (11,116)	$ 5,190,893
Weighted average common shares outstanding-basic and diluted	1,013,292	1,007,399
Net (loss) income per common share: Basic and diluted
Basic and diluted (loss) income per share	$ (0.01)	$ 5.15