Variable Interest Entities Consolidating Balance Sheet (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Assets [Abstract]
Cash and cash equivalents	$ 11,318,015	$ 30,172,773
Restricted cash	6,845,543	5,471,522
Interest receivable	9,536,515	8,473,360
Available-for-sale Securities, Fair Value Disclosure Held in Trust	216,371,801	99,534,082
Available-for-sale Securities	68,946,370	45,703,294
Public housing capital fund trusts, at fair value	62,056,379	65,389,298
Mortgage backed securities, at fair value	37,845,661	32,121,412
Real Estate Assets [Abstract]
Land and land improvements	11,081,992	11,202,876
Buildings and improvements	111,195,695	93,615,479
Real estate assets before accumulated depreciation	122,277,687	104,818,355
Accumulated depreciation	(19,128,753)	(19,330,063)
Net real estate assets	103,148,934	85,488,292
Other Assets	18,163,814	8,216,295
Assets of Disposal Group, Including Discontinued Operation	0	32,580,427
Assets	534,233,032	413,150,755	297,976,545
Liabilities
Accounts payable, accrued expenses and other liabilities	5,450,694	5,013,947
Dividends Payable, Current	6,446,076	5,566,908
Debt financing	257,274,000	177,948,000
Long-term Debt	57,087,320	39,119,507
Liabilities of discontinued operations	0	1,531,462
Bond purchase commitment - fair market value adjustment (Notes 5 & 17)	4,852,177	0
Liabilities	331,110,267	229,179,824
Partners' Capital
General Partner	16,671	(430,087)
Beneficial Unit Certificate holders	223,573,312	207,383,087
Unallocated deficit of Consolidated VIEs	(20,455,896)	(25,035,808)
Partners' Capital	203,134,087	181,917,192	131,044,260
Partners' Capital Attributable to Noncontrolling Interest	(11,322)	2,053,739
Total Capital	203,122,765	183,970,931	131,589,045	128,021,565
Total Liabilities and Partners' Capital	534,233,032	413,150,755
Partnership [Member]
Assets [Abstract]
Cash and cash equivalents	11,292,039	30,123,447
Restricted cash	6,344,666	4,538,071
Interest receivable	14,357,065	14,131,063
Available-for-sale Securities, Fair Value Disclosure Held in Trust	230,885,864	124,149,600
Available-for-sale Securities	68,946,370	45,703,294
Public housing capital fund trusts, at fair value	62,056,379	65,389,298
Mortgage backed securities, at fair value	37,845,661	32,121,412
Real Estate Assets [Abstract]
Land and land improvements	9,245,592	6,798,407
Buildings and improvements	90,253,256	55,776,753
Real estate assets before accumulated depreciation	99,498,848	62,575,160
Accumulated depreciation	(9,386,811)	(5,458,961)
Net real estate assets	90,112,037	57,116,199
Other Assets	24,413,077	22,923,356
Assets of Disposal Group, Including Discontinued Operation		32,580,427
Assets	546,253,158	428,776,167
Liabilities
Accounts payable, accrued expenses and other liabilities	4,963,653	2,330,852
Dividends Payable, Current	6,446,076	5,566,908
Debt financing	257,274,000	177,948,000
Long-term Debt	57,087,320	39,119,507
Liabilities of discontinued operations		1,531,462
Bond purchase commitment - fair market value adjustment (Notes 5 & 17)	4,852,177
Liabilities	330,623,226	226,496,729
Partners' Capital
General Partner	16,671	(430,087)
Beneficial Unit Certificate holders	215,624,583	200,655,786
Unallocated deficit of Consolidated VIEs	0	0
Partners' Capital	215,641,254	200,225,699
Partners' Capital Attributable to Noncontrolling Interest	(11,322)	2,053,739
Total Capital	215,629,932	202,279,438
Total Liabilities and Partners' Capital	546,253,158	428,776,167
Consolidated VIEs [Member]
Assets [Abstract]
Cash and cash equivalents	25,976	49,326
Restricted cash	500,877	933,451
Interest receivable	0	0
Available-for-sale Securities, Fair Value Disclosure Held in Trust	0	0
Available-for-sale Securities	0	0
Public housing capital fund trusts, at fair value	0	0
Mortgage backed securities, at fair value	0	0
Real Estate Assets [Abstract]
Land and land improvements	1,836,400	4,404,469
Buildings and improvements	20,942,439	37,838,726
Real estate assets before accumulated depreciation	22,778,839	42,243,195
Accumulated depreciation	(9,741,942)	(13,871,102)
Net real estate assets	13,036,897	28,372,093
Other Assets	456,087	852,321
Assets of Disposal Group, Including Discontinued Operation		0
Assets	14,019,837	30,207,191	24,315,353
Liabilities
Accounts payable, accrued expenses and other liabilities	20,634,613	28,529,405
Dividends Payable, Current	0	0
Debt financing	0	0
Long-term Debt	14,897,000	24,158,000
Liabilities of discontinued operations		0
Bond purchase commitment - fair market value adjustment (Notes 5 & 17)	0
Liabilities	35,531,613	52,687,405
Partners' Capital
General Partner	0	0
Beneficial Unit Certificate holders	0	0
Unallocated deficit of Consolidated VIEs	(21,511,776)	(22,480,214)
Partners' Capital	(21,511,776)	(22,480,214)	(24,872,428)
Partners' Capital Attributable to Noncontrolling Interest	0	0
Total Capital	(21,511,776)	(22,480,214)
Total Liabilities and Partners' Capital	14,019,837	30,207,191
Consolidations, Eliminations for VIEs [Member]
Assets [Abstract]
Cash and cash equivalents	0	0
Restricted cash	0	0
Interest receivable	(4,820,550)	(5,657,703)
Available-for-sale Securities, Fair Value Disclosure Held in Trust	(14,514,063)	(24,615,518)
Available-for-sale Securities	0	0
Public housing capital fund trusts, at fair value	0	0
Mortgage backed securities, at fair value	0	0
Real Estate Assets [Abstract]
Land and land improvements	0	0
Buildings and improvements	0	0
Real estate assets before accumulated depreciation	0	0
Accumulated depreciation	0	0
Net real estate assets	0	0
Other Assets	(6,705,350)	(15,559,382)
Assets of Disposal Group, Including Discontinued Operation		0
Assets	(26,039,963)	(45,832,603)
Liabilities
Accounts payable, accrued expenses and other liabilities	(20,147,572)	(25,846,310)
Dividends Payable, Current	0	0
Debt financing	0	0
Long-term Debt	(14,897,000)	(24,158,000)
Liabilities of discontinued operations		0
Bond purchase commitment - fair market value adjustment (Notes 5 & 17)	0
Liabilities	(35,044,572)	(50,004,310)
Partners' Capital
General Partner	0	0
Beneficial Unit Certificate holders	7,948,729	6,727,301
Unallocated deficit of Consolidated VIEs	1,055,880	(2,555,594)
Partners' Capital	9,004,609	4,171,707
Partners' Capital Attributable to Noncontrolling Interest	0	0
Total Capital	9,004,609	4,171,707
Total Liabilities and Partners' Capital	$ (26,039,963)	$ (45,832,603)

This element represents the portion of the balance sheet assertion valued at fair value by the entity, which is held in trust, whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may by ued in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all sescuritized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

No definition available.