AVAILABLE-FOR-SALE SECURITIES (Details 5) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Designated credit reserve, Beginning balance	$ (16,126,355)	$ (4,882,582)
Designated credit reserve, Acquisitions	0	(19,145,414)	$ (5,363,444)
Designated credit reserve, Dispositions	559,860
Designated credit reserve, Accretion of net discount	0	0	0
Designated credit reserve, Realized gain on paydowns	0	0
Designated credit reserve, Realized credit losses	2,868,699	2,363,284	480,862
Designated credit reserve, Release of credit reserves	0	655,775
Designated credit reserve, Ending balance	(12,697,796)	(16,126,355)	(4,882,582)
Unamortized net discount, Beginning balance	(22,400,380)	(3,534,339)
Unamortized net discount, Acquisitions	(2,361,186)	(24,606,107)	(3,997,817)
Unamortized net discount, Dispositions	1,667,828
Unamortized net discount, Accretion of net discount	4,760,729	2,836,240	463,478
Unamortized net discount, Realized gain on paydowns	223,212	25,262
Unamortized net discount, Realized credit losses	0	0	0
Unamortized net discount, Release of credit reserves	655,775	(655,775)
Unamortized net discount, Ending balance	(17,454,022)	(22,400,380)	(3,534,339)
Beginning Balance, Total	(38,526,735)	(8,416,921)
Acquisitions, Total	(2,361,186)	(43,751,521)	(9,361,261)
Dispositions, Total	2,227,688
Accretion of net discount, Total	4,760,729	2,836,240	463,478
Realized gain on paydowns, Total	223,212	25,262
Realized credit losses, Total	2,868,699	2,363,284	480,862
Release of credit reserves, Total	655,775	0
Ending balance, Total	$ (30,151,818)	$ (38,526,735)	$ (8,416,921)