CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Investment properties, net of accumulated depreciation:
Office building and other commercial property	$ 872,013	$ 857,464
Total investment properties, net	872,013	857,464
Cash and cash equivalents	19,345,270	5,223,995
Investments in marketable securities	5,115,161	4,549,745
Other investments	5,900,713	6,412,120
Investment in affiliate	1,640,491	1,757,607
Loans, notes and other receivables	1,029,655	1,561,750
Investment in residential real estate partnership	99,186	1,685,978
Other assets	302,141	108,020
TOTAL ASSETS	34,304,630	22,156,679
LIABILITIES
Margin payable	9,992,478	267,198
Accounts payable, accrued expenses and other liabilities	438,813	119,171
Amounts due to Adviser for incentive fee	108,210	43,279
Note payable to affiliate	1,340,000	1,550,000
Deferred income taxes payable	144,264	84,153
TOTAL LIABILITIES	12,023,765	2,063,801
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 and 1,035,493 shares issued as of September 30, 2018 and December 31, 2017, respectively	1,046,393	1,035,493
Additional paid-in capital	24,157,986	24,076,991
Less: Treasury shares at cost 33,101 shares	(340,281)	(340,281)
Undistributed gains from sales of properties, net of losses	55,149,410	52,208,753
Undistributed losses from operations	(57,979,565)	(57,120,990)
Total stockholders' equity	22,033,943	19,859,966
Noncontrolling interest	246,922	232,912
TOTAL EQUITY	22,280,865	20,092,878
TOTAL LIABILITIES AND EQUITY	$ 34,304,630	$ 22,156,679