STOCKHOLDERS' EQUITY - Dividends Declared (Details) - USD ($)	Dec. 31, 2017		Dec. 31, 2016	[1]	Dec. 31, 2015
Dividends [Line Items]
Dividend Amount	$ 39,132	[1]	$ 39,132		$ 39,132
Common Stock
Dividends [Line Items]
Dividend Amount	$ 11,904,005
Cash Dividend Per Share (in dollars per share)	$ 0.60
Distribution One | Common Stock
Dividends [Line Items]
Dividend Amount	$ 876,963
Cash Dividend Per Share (in dollars per share)	$ 0.04374
Distribution One | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Two | Common Stock
Dividends [Line Items]
Dividend Amount	$ 876,963
Cash Dividend Per Share (in dollars per share)	$ 0.04374
Distribution Two | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Three | Common Stock
Dividends [Line Items]
Dividend Amount	$ 876,963
Cash Dividend Per Share (in dollars per share)	$ 0.04374
Distribution Three | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Four | Common Stock
Dividends [Line Items]
Dividend Amount	$ 876,963
Cash Dividend Per Share (in dollars per share)	$ 0.04374
Distribution Four | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Five | Common Stock
Dividends [Line Items]
Dividend Amount	$ 876,963
Cash Dividend Per Share (in dollars per share)	$ 0.04374
Distribution Five | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Six | Common Stock
Dividends [Line Items]
Dividend Amount	$ 876,963
Cash Dividend Per Share (in dollars per share)	$ 0.04374
Distribution Six | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Seven | Common Stock
Dividends [Line Items]
Dividend Amount	$ 1,106,963
Cash Dividend Per Share (in dollars per share)	$ 0.05522
Distribution Seven | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Eight | Common Stock
Dividends [Line Items]
Dividend Amount	$ 1,106,963
Cash Dividend Per Share (in dollars per share)	$ 0.05522
Distribution Eight | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Nine | Common Stock
Dividends [Line Items]
Dividend Amount	$ 1,106,963
Cash Dividend Per Share (in dollars per share)	$ 0.05522
Distribution Nine | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Ten | Common Stock
Dividends [Line Items]
Dividend Amount	$ 1,106,963
Cash Dividend Per Share (in dollars per share)	$ 0.05522
Distribution Ten | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Eleven | Common Stock
Dividends [Line Items]
Dividend Amount	$ 1,107,188
Cash Dividend Per Share (in dollars per share)	$ 0.05523
Distribution Eleven | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230
Distribution Twelve | Common Stock
Dividends [Line Items]
Dividend Amount	$ 1,107,188
Cash Dividend Per Share (in dollars per share)	$ 0.05523
Distribution Twelve | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Share (in dollars per share)	$ 0.18230

[1] Our consolidated balance sheets include assets and liabilities of consolidated variable interest entities (“VIE's) as the Company is the primary beneficiary of these VIEs. As of December 31, 2017 and December 31, 2016, assets of consolidated VIEs totaled $1,255,404,335 and $1,369,120,941, respectively, and the liabilities of consolidated VIEs totaled $1,228,295,517 and $1,344,404,080, respectively