Organization (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012	Oct. 19, 2007	Apr. 03, 2006
Accounting Policies [Abstract]
Capital Units, Value				$ 10
Limited Partners' Capital Account, Units Outstanding (in Shares)	1,781,725	1,792,925	1,832,736	150,000
Limited Partners' Contributed Capital			18,327,360	1,500,000
General Partners' Contributed Capital			$ 1,000