QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) - USD ($)	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Total interest income	$ 26,338,000	$ 27,401,000	$ 29,632,000	$ 31,043,000	$ 29,139,000	$ 8,267,000	$ 4,499,000	$ 3,908,000			$ 11,087,306	$ 11,854,700	$ 14,436,966
Total interest expense	(19,801,000)	(20,301,000)	(21,062,000)	(21,940,000)	(23,077,000)	(3,596,000)	(608,000)	(560,000)
Net interest income	6,537,000	7,100,260	8,570,002	9,103,000	6,062,000	4,671,000	3,891,000	3,348,000	$ 17,672,729	$ 24,772,989	31,309,716	17,971,303	14,180,008
Other-than-temporary impairment	1,016,000	(351,000)	567,000	(4,868,000)	0	0	0	0
Other income (loss)	1,289,000	(4,944,000)	(1,216,000)	(5,232,000)	(5,065,000)	3,395,000	2,838,000	(4,291,000)
Total expenses	5,363,000	3,505,000	4,120,000	4,133,000	4,779,000	2,853,000	2,304,000	1,598,000
Net income (loss)	3,478,000	(1,698,722)	3,801,048	(5,130,000)	(3,782,000)	5,213,000	4,425,000	(2,541,000)	(1,329,278)	(3,028,000)	450,479	3,313,786	3,226,430
Net income (loss) attributable to common stockholders (basic and diluted)	2,588,000	(2,579,231)	2,930,322	(6,011,000)	(4,494,000)	4,154,000	3,789,000	(3,022,000)	(3,080,513)	(5,659,744)	(3,071,557)	426,490	3,181,603
Earnings (loss) per share:
Net income (loss) attributable to common stockholders (basic and diluted)	$ 2,588,000	$ (2,579,231)	$ 2,930,322	$ (6,011,000)	$ (4,494,000)	$ 4,154,000	$ 3,789,000	$ (3,022,000)	$ (3,080,513)	$ (5,659,744)	$ (3,071,557)	$ 426,490	$ 3,181,603
Weighted average number of shares of common stock outstanding:	14,719,632	14,724,750	14,721,492	14,718,750	14,718,750	14,640,065	11,150,788	8,816,658	14,720,051	14,721,635	14,721,074	12,358,587	6,132,702
Basic and diluted income (loss) per share	$ 0.18	$ (0.18)	$ 0.20	$ (0.41)	$ (0.31)	$ 0.28	$ 0.34	$ (0.34)	$ (0.21)	$ (0.38)	$ (0.21)	$ 0.03	$ 0.52