Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Rental property:
Land	$ 5,163,093	$ 5,163,093
Building and improvements	31,695,791	33,307,858
Machinery and equipment	344,733	343,272
	37,203,617	38,814,223
Less accumulated depreciation	6,994,676	6,281,121
	30,208,941	32,533,102
Land held for development:
Land	558,466	558,466
Land development costs	1,796,597	1,715,846
	2,355,063	2,274,312
Total real estate, net	32,564,004	34,807,414
Cash and cash equivalents	85,210,576	94,164,722
Investment in marketable securities	3,558,237	4,516,472
Rent receivable, net of allowance for doubtful accounts of $68,000 and $67,000, respectively	77,666	142,478
Deferred rent receivable	218,751	225,432
Prepaid expenses and other assets	777,972	662,481
Total Assets	122,407,206	134,518,999
LIABILITIES:
Accounts payable	2,398,432	486,887
Accrued liabilities	5,305,130	277,982
Dividends payable	98,685,000
Deferred rent liability	107,723	52,351
Tenant security deposits payable	467,638	463,706
Mortgage loans payable		5,013,415
Deferred income taxes	1,315,000	62,964,000
Pension cost liability	757,098	492,656
Total Liabilities	109,036,021	69,750,997
Commitments and contingencies
STOCKHOLDERS’ EQUITY:
Common stock, $1 par value; authorized 4,000,000 shares; 1,723,888 shares issued; 1,482,680 shares outstanding	1,723,888	1,723,888
Additional paid-in capital	17,753,505	17,753,505
Accumulated other comprehensive loss	(1,288,096)	(1,195,803)
Balance of undistributed income	(3,280,415)	48,024,109
	14,908,882	66,305,699
Less cost of shares of common stock held in treasury; 241,208	(1,537,697)	(1,537,697)
Total Stockholders’ Equity	13,371,185	64,768,002
Total Liabilities and Stockholders’ Equity	$ 122,407,206	$ 134,518,999