SBA-GUARANTEED DEBENTURES - Schedule of Interest Expense and Amortized Fees on SBA-guaranteed Debentures (Details) - SBA-guaranteed Debentures - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Interest expense	$ 8,151,814	$ 6,389,513	$ 5,385,661
Debenture fee amortization	1,227,952	1,088,132	701,069
Total interest and financing expenses	$ 9,379,766	$ 7,477,645	$ 6,086,730
Weighted average interest rate	2.80%	2.80%	3.30%
Effective interest rate (including fee amortization)	3.30%	3.30%	3.80%
Average debt outstanding	$ 288,167,082	$ 227,826,849	$ 161,635,246
Cash paid for interest	$ 7,360,295	$ 5,907,676	$ 5,346,231