AVAILABLE-FOR-SALE SECURITIES (Details 6) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Designated credit reserve, Beginning Balance	$ (12,697,796)	$ (16,126,355)
Designated credit reserve, Acquisitions	0	0
Designated credit reserve, Dispositions	0	559,860
Designated credit reserve, Accretion of net discount	0	0
Designated credit reserve, Realized gain on paydowns	0	0
Designated credit reserve, Realized credit losses	2,494,478	2,868,699
Designated credit reserve, Addition to credit reserves	(1,977,489)
Designated credit reserve, Release of credit reserves	0	0
Designated credit reserve, Ending balance	(51,699,067)	(12,697,796)
Unamortized net discount, Beginning balance	(17,454,022)	(22,400,380)
Unamortized net discount, Acquisitions	(20,272,373)	(2,361,186)
Unamortized net discount, Dispositions	0	1,667,828
Unamortized net discount, Accretion of net discount	4,036,759	4,760,729
Unamortized net discount, Realized gain on paydowns	52,244	223,212
Unamortized net discount, Realized credit losses	0	0
Unamortized net discount, Addition to credit reserves	1,977,489
Unamortized net discount, Release of credit reserves	0	655,775
Unamortized net discount, Ending balance	(78,751,862)	(17,454,022)
Beginning Balance, Total	(113,871,097)	(38,526,735)
Acquisitions, Total	(20,272,373)	(2,361,186)
Dispositions, Total	0	2,227,688
Accretion of net discount, Total	4,036,759	4,760,729
Realized gain on paydowns, Total	52,244	223,212
Realized credit losses, Total	2,494,478	2,868,699
Addition to credit reserves Total	0
Release of credit reserves, Total	0	655,775
Ending balance, Total	$ (127,559,989)	$ (113,871,097)