COMMERCIAL MORTGAGE LOAN HELD-FOR-INVESTMENT- Summary of Commercial Loan Risk Ratings (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) mortgageLoan		Dec. 31, 2023 USD ($) mortgageLoan		Dec. 31, 2022 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Outstanding Principal	$ 1,060,123,298	[1]	$ 1,389,940,203	[1]	$ 1,076,148,186
Average risk rate	3.5		3.5
Purchases and advances	$ 58,423,744		$ 594,201,680
Commercial Real Estate Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | mortgageLoan	65		88
Outstanding Principal	$ 1,065,563,646		$ 1,397,385,160
Year 1	58,068,230		17,887,019
Year 2	17,973,555		621,862,219
Year 3	511,654,760		707,350,371
Year 4	461,106,533
Year 5			36,781,588
Purchases and advances	$ 58,423,744		$ 594,201,680
Commercial Real Estate Portfolio Segment | Risk Rating, 1
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | mortgageLoan	0		0
Outstanding Principal	$ 0		$ 0
Year 1	0		0
Year 2	0		0
Year 3	0		0
Year 4	$ 0
Year 5			$ 0
Commercial Real Estate Portfolio Segment | Risk Rating, 2
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | mortgageLoan	3		3
Outstanding Principal	$ 57,840,000		$ 37,720,000
Year 1	27,048,495		0
Year 2	0		37,276,159
Year 3	30,416,761		0
Year 4	0
Year 5			$ 0
Purchases and advances	$ 27,100,000
Commercial Real Estate Portfolio Segment | Risk Rating, 3
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | mortgageLoan	40		67
Outstanding Principal	$ 616,637,103		$ 1,019,844,272
Year 1	31,019,735		17,887,019
Year 2	17,973,555		449,921,414
Year 3	266,895,843		542,010,684
Year 4	$ 294,277,177
Year 5			$ 0
Average risk rating, percentage	63.70%		75.70%
Commercial loans that paid off	$ 277,500,000
Purchases and advances	31,300,000
Transition of commercial loans held for sale to a higher risk rating	7,000,000
Transition of commercial loans held for sale to a lower risk rating	$ 67,800,000
Commercial Real Estate Portfolio Segment | Risk Rating, 4
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | mortgageLoan	16		16
Outstanding Principal	$ 292,826,616		$ 294,150,124
Year 1	0		0
Year 2	0		134,664,646
Year 3	140,183,307		156,450,510
Year 4	147,641,857
Year 5			$ 0
Commercial loans that paid off	67,100,000
Transition of commercial loans held for sale to a higher risk rating	$ 225,700,000
Commercial Real Estate Portfolio Segment | Risk Rating, 5
Financing Receivable, Recorded Investment [Line Items]
Number of Loans | mortgageLoan	6		2
Outstanding Principal	$ 98,259,927		$ 45,670,764
Year 1	0		0
Year 2	0		0
Year 3	74,158,849		8,889,177
Year 4	19,187,499
Year 5			$ 36,781,588
Commercial loans that paid off	45,700,000
Transition of commercial loans held for sale to a higher risk rating	92,200,000
Transition of commercial loans held for sale to a risk rating two steps higher	$ 6,100,000

[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, 2024 and December 31, 2023, assets of the consolidated VIEs totaled $1,058,138,406 and $1,384,136,334, respectively and the liabilities of consolidated VIEs totaled $831,001,605 and $1,150,207,290, respectively. See Note 4 for further discussion.