RESIDENTIAL MORTGAGE LOAN SECURITIZATION TRUSTS - Condensed Consolidated Statements of Operations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statements of Operations
Net interest income	$ 4,827,921	$ 5,772,070	$ 10,611,682	$ 11,532,501
General and administrative fees	(1,243,257)	(1,679,132)	(2,831,829)	(3,311,643)
Unrealized gain (loss) on residential loans held in securitization trusts	(250,079)	3,399,187	(618,422)	845,110
Net income (loss)	(2,296,571)	(7,799,801)	72,570	(24,747,415)
Residential mortgage loans
Statements of Operations
Interest income	1,298,520	3,408,847	2,653,958	7,561,253
Interest expense	1,030,971	2,589,846	2,105,323	5,768,288
Net interest income	267,549	819,001	548,635	1,792,965
General and administrative fees	(11,380)	(108,353)	(23,224)	(240,771)
Unrealized gain (loss) on residential loans held in securitization trusts	(250,079)	3,399,187	(618,422)	845,110
Net income (loss)	$ 6,090	$ 4,109,835	$ (93,011)	$ 2,397,304