SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	[1]	$ 14,749,046	$ 11,375,960
Restricted cash	[1]		57,999,396
Total cash, cash equivalents and restricted cash		18,279,052	69,375,356	$ 16,011,830
Hunt CRE 2018-FL2, Ltd.
Cash and Cash Equivalents [Line Items]
Restricted cash		0	57,999,396
LFT CRE 2021-FL1, Ltd.
Cash and Cash Equivalents [Line Items]
Restricted cash		$ 3,530,006	$ 0

[1] Our consolidated balance sheets include assets and liabilities of consolidated variable interest entities ("VIEs") as the Company was the primary beneficiary of these VIEs. As of December 31, 2021 and December 31, 2020, assets of the consolidated VIEs totaled $1,003,896,995 and $591,318,506, respectively and the liabilities of consolidated VIEs totaled $827,390,435 and $463,411,967, respectively.