Investments In and Advances to Partnerships - Summarized Financial Information, Statement of Operations (Details) (USD $)	3 Months Ended
	Mar. 31, 2013 partnership		Mar. 31, 2012
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships	3
Expenses:
Cash distributions	$ 23,879
Share of income (loss) from partnerships	128,607		339,459
Local Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships where cumulative losses exceed investment	1		3
Amount of cumulative losses exceeding investment	2,898,788		3,343,037
Number of Local Partnerships	3		6
Revenue:
Rental	567,377		1,244,596
Other	15,269		96,479
Total revenue	582,646		1,341,075
Expenses:
Operating	372,947		748,670
Interest	44,334		98,451
Depreciation and amortization	42,174		134,384
Total expenses	459,455		981,505
Net income (loss)	123,191		359,570
Cash distributions	23,879		0
Cash distributions recorded as reduction of investments in partnerships	16,660		0
Cash distribution recorded as income	7,219
Partnership's share of Local Partnership net income	121,388		339,459
Share of income (loss) from partnerships	128,607		339,459
Local Partnership Equity Method [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships	2	[1]	3	[2]
Revenue:
Rental	401,819		921,244
Other	12,958		90,316
Total revenue	414,777		1,011,560
Expenses:
Operating	258,614		505,639
Interest	7,456		57,568
Depreciation and amortization	24,834		101,943
Total expenses	290,904		665,150
Net income (loss)	123,873		346,410
Cash distributions	16,660		0
Cash distributions recorded as reduction of investments in partnerships	16,660		0
Cash distribution recorded as income	0
Partnership's share of Local Partnership net income	121,388		339,459
Share of income (loss) from partnerships	121,388		339,459
Local Partnership Equity Method Suspended [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships	1	[3]	3	[4]
Revenue:
Rental	165,558		323,352
Other	2,311		6,163
Total revenue	167,869		329,515
Expenses:
Operating	114,333		243,031
Interest	36,878		40,883
Depreciation and amortization	17,340		32,441
Total expenses	168,551		316,355
Net income (loss)	(682)		13,160
Cash distributions	7,219		0
Cash distributions recorded as reduction of investments in partnerships	0		0
Cash distribution recorded as income	7,219
Partnership's share of Local Partnership net income	0		0
Share of income (loss) from partnerships	$ 7,219		$ 0

[1] Westwood Village, Chestnut

[2] Capital Commons, Chestnut, Westwood Village

[3] New Sharon Woods

[4] Hillview Terrace, New Sharon Woods, Shallowford Oaks