QUARTERLY FINANCIAL DATA (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Total interest income	$ 8,954,000	$ 9,832,000	$ 10,289,000	$ 9,983,000	$ 10,169,000	$ 9,719,000	$ 17,551,000	$ 21,516,000
Total interest expense	(5,589,000)	(6,036,000)	(6,242,000)	(5,776,000)	(5,571,000)	(4,604,000)	(12,981,000)	(18,398,000)
Net interest income	3,365,000	3,796,000	4,047,000	4,207,000	4,598,000	5,115,000	4,570,000	3,118,000	$ 15,413,842	$ 17,400,715
Other income (loss)	178,000	(202,000)	(274,000)	(147,000)	(476,000)	1,361,000	(23,670,000)	11,410,000
Total expenses	2,238,000	1,703,000	2,176,000	2,648,000	2,250,000	2,123,000	2,390,000	3,213,000
Net income (loss) before provision for income taxes	1,305,000	1,891,000	1,597,000	1,412,000	1,872,000	4,353,000	(21,490,000)	11,315,000	6,205,367	(3,949,717)
(Provision for) benefit from income taxes	(83,000)	267,000	(203,000)	63,000	(1,522,000)	0	0	0	43,523	(1,521,745)
Net income	1,222,000	2,158,000	1,394,000	1,475,000	350,000	4,353,000	(21,490,000)	11,315,000	6,248,890	(5,471,462)
Net income (loss) attributable to common stockholders	1,218,000	2,154,000	1,390,000	(2,099,000)	(546,000)	3,473,000	(22,361,000)	10,434,000	2,664,098	(9,000,050)
Earnings (loss) per share:
Net income (loss) attributable to common stockholders	$ 1,218,000	$ 2,154,000	$ 1,390,000	$ (2,099,000)	$ (546,000)	$ 3,473,000	$ (22,361,000)	$ 10,434,000	$ 2,664,098	$ (9,000,050)
Weighted average number of shares of common stock outstanding (in shares)	23,688,251	23,687,664	23,687,664	23,687,664	23,687,664	23,687,273	23,683,164	23,392,387	23,687,812	23,613,636
Basic and diluted income (loss) per share (in dollars per share)	$ 0.05	$ 0.09	$ 0.06	$ (0.09)	$ (0.02)	$ 0.15	$ (0.94)	$ 0.45	$ 0.11	$ (0.38)