Investments in Partnerships - Summarzied Financial Information, Balance Sheets (Details) (USD $)	12 Months Ended
	Dec. 31, 2012 partnership		Dec. 31, 2011 partnership
Local Partnership Equity Method [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships	1	[1]	2	[2]
Rental property, at cost, net of accumulated depreciation	$ 1,144,413		$ 1,101,086
Accumulated depreciation	4,463,501		4,236,640
Land	168,760		432,415
Other assets	2,198,576		2,422,446
Total assets	3,511,749		3,955,947
Mortgage notes payable	251,830		1,243,492
Other liabilities	41,890		476,752
Due to general partners	0		1,183,533
Total liabilities	293,720		2,903,777
Partners' capital (deficit)	3,218,029		1,052,170
Total liabilities and partners' capital (deficit)	3,511,749		3,955,947
Local Partnership Equity Method Suspended [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships			2	[3]
Rental property, at cost, net of accumulated depreciation			10,426
Accumulated depreciation			2,948,051
Land			237,909
Other assets			5,466,901
Total assets			5,715,236
Mortgage notes payable			13,084,259
Other liabilities			1,482,250
Due to general partners			1,470,716
Total liabilities			16,037,225
Partners' capital (deficit)			(10,321,989)
Total liabilities and partners' capital (deficit)			5,715,236
Local Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Number of Local Partnerships	1		4
Rental property, at cost, net of accumulated depreciation			1,111,512
Land			670,324
Other assets			7,889,347
Total assets			9,671,183
Mortgage notes payable			14,327,751
Other liabilities			1,959,002
Due to general partners			2,654,249
Total liabilities			18,941,002
Partners' capital (deficit)			(9,269,819)
Total liabilities and partners' capital (deficit)			$ 9,671,183

[1] Meadow Lanes

[2] Meadow Lanes; Villa Mirage I

[3] Monterey/Hillcrest; Villa Mirage II