8. Taxable Income (Loss): Differences Between Investment in Local Partnerships for Tax and Financial Reporting Purposes (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Details
Investment in Local Partnerships - Financial Reporting	$ 0	$ 0
Investment in Local Partnerships - Tax	(21,907,299)	(20,563,081)
Differences between the Investment in Local Partnerships for Tax and Financial Reporting Purposes	$ 21,907,299	$ 20,563,081