SBA-GUARANTEED DEBENTURES - Schedule of Interest Expense and Amortized Fees on SBA-guaranteed Debentures (Details) - SBA-guaranteed Debentures - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument [Line Items]
Interest expense	$ 2,559,727	$ 2,076,751	$ 7,403,454	$ 5,743,011
Debenture fee amortization	313,889	316,274	938,247	905,294
Total interest and financing expenses	$ 2,873,616	$ 2,393,025	$ 8,341,701	$ 6,648,305
Weighted average interest rate	3.10%	2.80%	3.10%	2.70%
Effective interest rate (including fee amortization)	3.50%	3.20%	3.50%	3.20%
Average debt outstanding	$ 323,017,391	$ 299,556,522	$ 316,773,626	$ 280,681,996
Cash paid for interest	$ 4,965,850	$ 3,955,224	$ 9,646,849	$ 7,360,295