CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Investment properties, net of accumulated depreciation:
Office building and other commercial property	$ 871,566	$ 875,198
Total investment properties, net	871,566	875,198
Cash and cash equivalents	18,559,499	19,738,174
Investments in marketable securities	3,606,821	3,075,718
Other investments	5,962,649	6,039,456
Investment in affiliate	1,424,848	1,637,985
Loans, notes and other receivables	1,769,195	1,796,926
Other assets	513,605	273,477
TOTAL ASSETS	32,708,183	33,436,934
LIABILITIES
Margin payable	9,974,972	9,857,918
Dividends payable	0	506,646
Accounts payable, accrued expenses and other liabilities	384,253	370,632
Amounts due to Adviser for incentive fee	40,426	40,426
Note payable to affiliate	1,000,000	1,340,000
Deferred income taxes payable	43,416	47,888
TOTAL LIABILITIES	11,443,067	12,163,510
STOCKHOLDERS' EQUITY
Excess common stock, $1 par value; 100,000 shares authorized: no shares issued	0	0
Common stock, $1 par value; 1,050,000 shares authorized, 1,046,393 shares issued as of March 31, 2019 and December 31, 2018	1,046,393	1,046,393
Additional paid-in capital	24,157,986	24,157,986
Less: Treasury shares at cost 33,101 shares	(340,281)	(340,281)
Undistributed gains from sales of properties, net of losses	54,642,764	54,642,764
Undistributed losses from operations	(58,484,923)	(58,473,807)
Total stockholders' equity	21,021,939	21,033,055
Noncontrolling interest	243,177	240,369
TOTAL EQUITY	21,265,116	21,273,424
TOTAL LIABILITIES AND EQUITY	$ 32,708,183	$ 33,436,934