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%
Tradewinds Terrace [Member]
Schedule of Equity Method Investments [Line Items]
Total Assets	$ 1,304,602	$ 1,324,188
Total Liabilities	74,752	140,111
Revenue	825,422	902,153
Net Income	$ 54,888	$ 134,726