COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	Sep. 30, 2020	Aug. 05, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Unfunded commitment related to loans held-for-investment	$ 29,500,000
Funded participation interests	1,800,000
Hunt CRE 2017-FL1, Ltd.
Loss Contingencies [Line Items]
Unfunded commitment related to loans held-for-investment	29,500,000	$ 31,300,000	$ 50,500,000
Funded participation interests	1,800,000
Hunt CRE 2018-FL2, Ltd
Loss Contingencies [Line Items]
Unfunded commitment related to loans held-for-investment	$ 40,900,000		$ 41,600,000