Statements of Partners' Capital (USD $)	Total	Class A Limited Partners	Class B Limited Partners	General Partners
Partners' capital, beginning of period at Dec. 31, 2009	$ 10,739,759	$ 10,739,759	$ 0	$ 0
Limited partners' capital beginning of period (in unit) at Dec. 31, 2009		3,263,890	236,110
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	(393,956)	(483,365)	89,409	0
Partners' capital, end of period at Dec. 31, 2010	10,345,803	10,256,394	89,409	0
Limited partners' capital end of period (in unit) at Dec. 31, 2010		3,263,890	236,110
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	553,476	475,159	77,430	887
Partners' capital, end of period at Dec. 31, 2011	10,899,279	10,731,553	166,839	887
Limited partners' capital end of period (in unit) at Dec. 31, 2011		3,263,890	236,110
Increase (Decrease) in Partners' Capital [Roll Forward]
Class B conversion elections (in unit)		10,000	(10,000)
Class B conversion elections	0	7,066	(7,066)
Net income (loss)	(22,067)	(112,043)	90,196	(220)
Distributions of Net Sale Proceeds	(3,500,000)	(3,250,031)	(249,969)
Partners' capital, end of period at Dec. 31, 2012	$ 7,377,212	$ 7,376,545	$ 0	$ 667
Limited partners' capital end of period (in unit) at Dec. 31, 2012		3,273,890	226,110