SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Dec. 31, 2019	Oct. 31, 2019	Jul. 31, 2019	Jun. 30, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Mar. 31, 2018
Subsequent Event [Line Items]
Loans		$ 669,713
OBX Trust | Consolidated VIEs
Subsequent Event [Line Items]
Loans			$ 465,492	$ 463,405	$ 383,760	$ 388,156	$ 393,961	$ 384,027	$ 383,451	$ 327,162
OBX Trust | Consolidated VIEs | Subsequent Event
Subsequent Event [Line Items]
Loans	$ 374,600