SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	[1]	$ 10,942,115	$ 7,882,862
Restricted cash	[1]	5,069,715	51,330,950
Total cash, cash equivalents and restricted cash		16,011,830	59,213,812	$ 45,622,602
Restricted cash CRE 2017-FL1, Ltd.
Cash and Cash Equivalents [Line Items]
Restricted cash		2,158,497	24,085,890
Restricted cash CRE 2018-FL2, Ltd.
Cash and Cash Equivalents [Line Items]
Restricted cash		$ 2,911,218	$ 27,245,060

[1] Our consolidated balance sheets include assets and liabilities of consolidated variable interest entities (“VIE's) as the Company was the primary beneficiary of these VIEs. As of December 31, 2019 and December 31, 2018, assets of the consolidated VIEs related to Hunt CRE 2017-FL1, Ltd. and Hunt CRE 2018-FL2, Ltd. totaled $636,541,489 and $636,951,486, respectively and the liabilities of consolidated VIEs related to Hunt CRE 2017-FL1, Ltd. and Hunt CRE 2018-FL2, Ltd. totaled $506,662,238 and $504,846,712, respectively.