COMMERCIAL MORTGAGE LOANS HELD-FOR-INVESTMENT - Loan Portfolio Activity (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Commercial Mortgage Loans Held-for-Investment
Balance at December 31, 2022	[1]			$ 1,071,889,518
Purchases, advances and originations				72,630,053	$ 222,142,167
Principal payments				(123,583,470)	(171,007,115)
Accretion of purchase discount				1,196	125,098
Amortization of purchase premium				(10,687)	(50,522)
Accretion of deferred loan fees				129,300	0
Provision for credit losses, net		$ (555,083)	$ (351,914)	(375,399)	$ (351,914)
Balance at June 30, 2023	[1]	1,017,145,010		1,017,145,010
Commercial Real Estate Portfolio Segment
Commercial Mortgage Loans Held-for-Investment
Balance at December 31, 2022				1,071,889,518
Purchases, advances and originations				72,630,053
Principal payments				(123,583,470)
Accretion of purchase discount				1,196
Amortization of purchase premium				(10,687)
Accretion of deferred loan fees				129,300
Provision for credit losses, net				(361,399)
Balance at June 30, 2023		$ 1,017,145,010		1,017,145,010
Commercial Real Estate Portfolio Segment | Minimum | Accounting Standards Update 2016-13
Commercial Mortgage Loans Held-for-Investment
Balance at December 31, 2022				$ (3,549,501)

[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 June 30, 2023 and December 31, 2022, assets of consolidated VIEs totaled $1,001,991,708 and $1,005,507,371, respectively and the liabilities of consolidated VIEs totaled $833,019,750 and $831,575,144 respectively. See Note 4 for further discussion.