Organization and Summary of Significant Accounting Policies - Deferred Costs (Details) (USD $)	12 Months Ended
	Dec. 31, 2012 partnership	Dec. 31, 2011 partnership
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Property purchase costs and acquisition fees, amortization period (in years)	40 years
Amortization of deferred costs	$ 4,884	$ 7,631
Number of Local Partnerships sold	2
Number of Local Partnerships foreclosed		1
Deferred costs written off	117,142	123,079
Accumulated amortization written off	88,102	91,816
Deferred costs written off, net	0	31,263
Estimated amortization expense
2013	2,139
2014	2,139
2015	2,139
2016	2,139
2017	$ 2,139