INCOME TAXES - Taxable Income Reconciliation (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Line Items]
Net income (loss)	$ 8,891,000	$ (4,256,000)	$ (2,297,000)	$ 2,369,000	$ 11,538,000	$ 1,496,000	$ (4,076,000)	$ (16,948,000)	$ 4,706,961	$ (7,989,955)	$ 450,479
Capitalized transaction fees									(41,000)	(41,000)	(41,000)
Unrealized gain (loss)									639,000	1,964,000	2,041,000
Deferred income									19,000	204,000	0
Tax income (loss) of taxable subsidiary before utilization of net operating losses									679,000	791,000	624,000
Utilizations of net operating losses									(679,000)	(791,000)	(624,000)
Net tax income of taxable subsidiaries									0	0	0
REIT Operation
Income Tax Disclosure [Line Items]
Net income (loss)									(4,645,000)	6,654,000	(1,826,000)
Five Oaks Investment Corp
Income Tax Disclosure [Line Items]
Net income (loss)									4,707,000	(7,990,000)	450,000
Subsidiaries
Income Tax Disclosure [Line Items]
Net income (loss)									$ 62,000	$ (1,336,000)	$ (1,376,000)