Statements of Partners' Capital (USD $)	Total	Class A Limited Partners	Class B Limited Partners	General Partners
Partners' Capital, beginning of period at Dec. 31, 2011	$ 10,899,279	$ 10,731,553	$ 166,839	$ 887
Limited Partners' Capital Account, Units Outstanding, beginning of period at Dec. 31, 2011		3,263,890	236,110
Increase (Decrease) in Partners' Capital [Roll Forward]
Partners' Capital Account, Class B Conversion Elections, Units		10,000	(10,000)
Partners' Capital Account, Class B Conversion Elections	0	7,066	(7,066)
Net income (loss)	(22,067)	(112,043)	90,196	(220)
Limited Partners' Capital Account, Distribution of Net Sale Proceeds	(3,500,000)	(3,250,031)	(249,969)	0
Partners' Capital, end of period at Dec. 31, 2012	7,377,212	7,376,545	0	667
Limited Partners' Capital Account, Units Outstanding, end of period at Dec. 31, 2012		3,273,890	226,110
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	648,643	(75,675)	724,985	(667)
Partners' Capital, end of period at Sep. 30, 2013	$ 8,025,855	$ 7,300,870	$ 724,985	$ 0
Limited Partners' Capital Account, Units Outstanding, end of period at Sep. 30, 2013		3,273,890	226,110