Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2012	Dec. 31, 2011
Rental property:
Land	$ 5,163,093	$ 5,163,093
Building and improvements	32,895,999	32,855,932
Machinery and equipment	343,272	338,275
	38,402,364	38,357,300
Less accumulated depreciation	5,605,458	5,381,026
	32,796,906	32,976,274
Land held for development:
Land	558,466	558,466
Land development costs	1,636,345	1,607,600
	2,194,811	2,166,066
Total real estate, net	34,991,717	35,142,340
Cash and cash Equivalents	4,664,495	10,375,994
Investment in marketable securities	5,305,587	0
Rent receivable, net of allowance for doubtful accounts of $109,000 and $103,000, respectively	158,785	83,942
Deferred rent receivable	164,317	137,220
Prepaid expenses and other assets	1,038,352	1,002,250
Prepaid pension costs	1,065,999	1,064,843
Total Assets	47,389,252	47,806,589
LIABILITIES:
Accounts payable	313,582	333,936
Accrued liabilities	458,804	456,166
Deferred rent liability	160,116	83,047
Tenant security deposits payable	485,820	486,861
Mortgage loans payable	20,981,699	21,143,780
Deferred income taxes	1,315,000	1,315,000
Total Liabilities	23,715,021	23,818,790
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	17,747,069	17,747,069
Accumulated other comprehensive income	247,407	292,031
Balance of undistributed income other than gain or loss on sales of properties	5,493,564	5,762,508
	25,211,928	25,525,496
Less cost of shares of common stock held in treasury; 241,208	(1,537,697)	(1,537,697)
Total Stockholders’ Equity	23,674,231	23,987,799
Total Liabilities and Stockholders’ Equity	$ 47,389,252	$ 47,806,589