STOCKHOLDERS' EQUITY - Dividends Declared (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Dividends [Line Items]
Dividend Amount	$ 1,450,609	$ 39,132	$ 29,349
Common Stock
Dividends [Line Items]
Dividend Amount	$ 5,156,936
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.22
Distribution One | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.18230
Distribution One | Common Stock
Dividends [Line Items]
Dividend Amount	$ 737,388
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.03126
Distribution Two | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.18230
Distribution Two | Common Stock
Dividends [Line Items]
Dividend Amount	$ 788,649
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.03343
Distribution Three | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.18230
Distribution Three | Common Stock
Dividends [Line Items]
Dividend Amount	$ 788,649
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.03343
Distribution Four | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.1823
Distribution Four | Common Stock
Dividends [Line Items]
Dividend Amount	$ 473,663
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.02008
Distribution Five | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.1823
Distribution Five | Common Stock
Dividends [Line Items]
Dividend Amount	$ 473,663
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.02008
Distribution Six | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.1823
Distribution Six | Common Stock
Dividends [Line Items]
Dividend Amount	$ 473,663
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.02008
Distribution Seven | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.1823
Distribution Seven | Common Stock
Dividends [Line Items]
Dividend Amount	$ 1,421,260
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.06025
Distribution Eight [Member] | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.1823
Distribution Nine [Member] | Series A Preferred Stock
Dividends [Line Items]
Dividend Amount	$ 293,503
Cash Dividend Per Weighted Average Share (in dollars per share)	$ 0.1823