Investments In and Advances to Partnerships - Summarized Financial Information, Statement of Operations (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Expenses:
Cash distributions	$ 27,437	$ 51,316
Increase in accrued interest receivable on advances to local partnership	0	(28,390)
Share of income (loss) from partnerships	1,510,098	1,299,472
Local Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships	5	6
Revenue:
Rental	4,925,744	5,835,632
Other	426,661	3,279,447
Total revenue	5,352,405	9,115,079
Expenses:
Operating	3,050,361	3,861,066
Interest	243,620	712,735
Depreciation and amortization	392,290	643,520
Total expenses	3,686,271	5,217,321
Net income	1,666,134	3,897,758
Cash distributions	27,437	51,316
Cash distributions recorded as reduction of investments in partnerships	27,437	44,097
Cash distributions recorded as income		7,219
Partnership's share of Local Partnership net income	1,510,098	1,320,643
Increase in accrued interest receivable on advances to local partnership	0	(28,390)
Share of income (loss) from partnerships	1,510,098	1,299,472
Local Partnership Equity Method [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships	3	3	[1]
Revenue:
Rental	3,575,298	3,684,975
Other	405,497	361,263
Total revenue	3,980,795	4,046,238
Expenses:
Operating	2,061,140	2,022,557
Interest	75,654	230,273
Depreciation and amortization	261,243	378,171
Total expenses	2,398,037	2,631,001
Net income	1,582,758	1,415,237
Cash distributions	27,437	44,097
Cash distributions recorded as reduction of investments in partnerships	27,437	44,097
Cash distributions recorded as income		0
Partnership's share of Local Partnership net income	1,510,098	1,320,643
Increase in accrued interest receivable on advances to local partnership	0	0
Share of income (loss) from partnerships	1,510,098	1,320,643
Local Partnership Equity Method Suspended [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships	2	3	[2]
Revenue:
Rental	1,350,446	2,150,657
Other	21,164	2,918,184
Total revenue	1,371,610	5,068,841
Expenses:
Operating	989,221	1,838,509
Interest	167,966	482,462
Depreciation and amortization	131,047	265,349
Total expenses	1,288,234	2,586,320
Net income	83,376	2,482,521
Cash distributions	0	7,219
Cash distributions recorded as reduction of investments in partnerships	0	0
Cash distributions recorded as income		7,219
Partnership's share of Local Partnership net income	0	0
Increase in accrued interest receivable on advances to local partnership	0	(28,390)
Share of income (loss) from partnerships	$ 0	$ (21,171)

[1] Capital Commons; Chestnut; Westwood Village

[2] Hillview Terrace; New Sharon Woods; Shallowford Oaks