SBA-GUARANTEED DEBENTURES - Schedule of SBA-guaranteed Debentures, Net of Prepaid Loan Fees (Details) - USD ($)	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
SBA Debentures, net of prepaid loan fees	$ 299,000,000	$ 325,000,000	$ 325,000,000	$ 313,600,000	$ 250,000,000	$ 176,500,000	$ 161,000,000	$ 150,000,000	$ 90,000,000	$ 65,000,000
SBA-guaranteed Debentures
Debt Instrument [Line Items]
SBA Debentures payable	299,000,000	325,000,000
Prepaid loan structure fees	(3,015,937)	(3,748,061)
SBA Debentures, net of prepaid loan fees	$ 295,984,063	$ 321,251,939