Consolidated Statements of Partners' Capital (USD $)	Total USD ($)	General Partner USD ($)	Number of Units	Limited Partner [Member] USD ($)	Unallocated Deficit of Consolidated Variable Interest Entities USD ($)	Noncontrolling Interest USD ($)	Accumulated Other Comprehensive Income (Loss) USD ($)	Ohio Properties [Member] USD ($)	Ohio Properties [Member] General Partner USD ($)	Ohio Properties [Member] Limited Partner [Member] USD ($)	Ohio Properties [Member] Unallocated Deficit of Consolidated Variable Interest Entities USD ($)	Ohio Properties [Member] Noncontrolling Interest USD ($)	Ohio Properties [Member] Accumulated Other Comprehensive Income (Loss) USD ($)	Greens of Pine Glen [Member] USD ($)	Greens of Pine Glen [Member] General Partner USD ($)	Greens of Pine Glen [Member] Limited Partner [Member] USD ($)	Greens of Pine Glen [Member] Unallocated Deficit of Consolidated Variable Interest Entities USD ($)	Greens of Pine Glen [Member] Noncontrolling Interest USD ($)	Greens of Pine Glen [Member] Accumulated Other Comprehensive Income (Loss) USD ($)
Balance at Dec. 31, 2011	$ 131,589,045	$ (354,006)		$ 154,911,228	$ (23,512,962)	$ 544,785	$ 95,894
Partners' Capital Account, Units at Dec. 31, 2011			30,122,928
Stock Issued During Period, Shares, New Issues			12,650,000
Limited Partners Interest in Ohio Properties	959,760	0		0	0	959,760	0
Distributions paid or accrued
Regular Distribution, 2010 and 2011 and Distributions paid or accrued, 2009	(18,011,532)	(180,115)		(17,831,417)	0	0	0
Distribution of tier II earnings - Note 2	2,631,730	657,933		1,973,797	0	0	0
Net income (loss)	4,996,038	(691,312)		(5,278,378)	(1,522,846)	549,194	0
Unrealized Gain (Loss) on Securities	7,065,487	70,655		6,994,832	0	0	7,065,487
Proceeds from Issuance of Common Stock	60,003,863			60,003,863	0	0	0
Balance at Dec. 31, 2012	183,970,931	(430,087)		207,383,087	(25,035,808)	2,053,739	7,161,381
Partners' Capital Account, Units at Dec. 31, 2012			42,772,928
Stock Issued During Period, Shares, New Issues			8,280,000
Deconsolidation of Discontinued Operations								393,401	14,064	1,392,303	0	(1,012,966)	1,406,367	(1,314,018)	0	0	0	(1,314,018)	0
Deconsolidation of VIEs - Note 4	5,485,803	(2,104)		(208,267)	5,696,174	0	(210,370)
Available-for-sale Securities, Gross Realized Gain (Loss)	(651,849)	(6,518)		(645,331)	0		(651,849)
Distributions paid or accrued
Regular Distribution, 2010 and 2011 and Distributions paid or accrued, 2009	(21,178,686)	(211,786)		(20,966,900)	0	0	0
Foreclosure of Available-for-Sale Securities	(4,080,734)	(40,807)		(4,039,927)	0	0	4,080,734
Distribution of tier II earnings - Note 2	1,939,419	484,855		1,454,564	0	0	0
Net income (loss)	17,976,842	1,416,296		17,414,885	(1,116,262)	261,923	0
Unrealized Gain (Loss) on Securities	(27,062,400)	(270,624)		(26,791,776)	0	0	(27,062,400)
Proceeds from Issuance of Common Stock	48,213,603			48,213,603	0	0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(4,852,177)	(48,522)		(4,803,655)	0	0	(4,852,177)
Balance at Dec. 31, 2013	203,122,765	16,671		223,573,312	(20,455,896)	(11,322)	(20,128,314)
Partners' Capital Account, Units at Dec. 31, 2013			51,052,928
Stock Issued During Period, Shares, New Issues			9,200,000
Available-for-sale Securities, Gross Realized Gain (Loss)	(2,413,713)	(24,137)		(2,389,576)	0		(2,413,713)
Distributions paid or accrued
Regular Distribution, 2010 and 2011 and Distributions paid or accrued, 2009	(27,591,056)	(275,910)		(27,315,146)	0	0	0
Distribution of tier II earnings - Note 2	3,748,424	937,106		2,811,318	0	0	0
Net income (loss)	15,029,188	1,056,316		14,613,105	(635,560)	(4,673)	0
Unrealized Gain (Loss) on Securities	62,852,308	628,523		62,223,785	0	0	62,852,308
Proceeds from Issuance of Common Stock	51,288,699	0		51,288,699	0	0	0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	10,632,590	106,326		10,526,264	0	0	10,632,590
Gain (Loss) on Sales of Mortgage Backed Securities (MBS)	755,547	7,555		747,992	0		755,547
Balance at Dec. 31, 2014	$ 309,927,904	$ 578,238		$ 330,457,117	$ (21,091,456)	$ (15,995)	$ 51,698,418