Significant Subsidiaries (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]
Percent of total assets or equity Local Partnership represents, more than 20%	20.00%
Meadow Lanes [Member]
Schedule of Equity Method Investments [Line Items]
Total Assets	$ 3,511,749	$ 3,449,214
Total Liabilities	293,720	458,609
Revenue	1,025,611	1,116,792
Net Income	$ 238,864	$ 206,073