Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 17,429,602	$ 20,201,573
Restricted cash	12,746,866	13,852,753
Interest receivable	8,272,937	6,984,978
Tax-exempt mortgage revenue bonds held in trust, at fair value (Notes 4 & 8)	111,845,978	109,152,787
Tax-exempt mortgage revenue bonds, at fair value (Note 4)	26,730,200	26,542,565
Real estate assets: (Note 5)
Land	13,343,557	12,430,434
Buildings and improvements	112,843,888	111,653,203
Real estate assets before accumulated depreciation	126,187,445	124,083,637
Accumulated depreciation	(21,063,405)	(19,817,998)
Net real estate assets	105,124,040	104,265,639
Other assets (Note 6)	9,287,481	9,682,388
Assets of discontinued operations (Note 7)	7,287,162	7,293,862
Total Assets	298,724,266	297,976,545
Liabilities
Accounts payable, accrued expenses and other liabilities	3,058,530	3,491,642
Distribution payable	3,803,400	3,911,340
Debt financing (Note 8)	112,537,000	112,673,000
Mortgages payable (Note 9)	41,752,135	40,092,455
Liabilities of discontinued operations (Note 7)	6,166,328	6,219,063
Total Liabilities	167,317,393	166,387,500
Commitments and Contingencies (Note 13)
Partners' Capital
General Partner (Note 2)	(354,861)	(354,006)
Beneficial Unit Certificate holders	154,826,581	154,911,228
Unallocated deficit of Consolidated VIEs	(23,752,821)	(23,512,962)
Total Partners' Capital	130,718,899	131,044,260
Noncontrolling interest (Note 5)	687,974	544,785
Total Capital	131,406,873	131,589,045
Total Liabilities and Partners' Capital	$ 298,724,266	$ 297,976,545