Schedule III - Real Estate and Accumulated Depreciation (Details) (USD $)				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Commercial Park West Durham NC
Encumbrances	$ 0			$ 0
Initial cost of land	800,000			800,000
Initial cost of buildings and improvements	5,191,538			5,191,538
Cost capitalized subsequent to acquistion	2,791,400			2,791,400
Retirements	(6,466,748)			(6,466,748)
Carrying amount of Land	299,744			299,744
Carrying amount of Building and Improvments	2,016,446			2,016,446
Carrying Amount	2,329,390	2,316,190	2,269,866	2,316,190
Accumulaed Depreciation	1,759,295	1,678,620	1,595,874	3,778,285
Retirments	(2,018,989)			(2,018,989)
Date of construction				Jun. 01, 1991
Date acquired				Jun. 01, 1991
Life on which depreciation in latest income statement is computed				25 years
Cost for Federal income tax purposes	$ 2,329,390