CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
INVESTMENT INCOME
Interest income	$ 72,964,999	$ 61,536,686	$ 55,350,781
Other income	2,147,577	2,142,308	1,307,533
Total Investment Income	75,112,576	63,678,994	56,658,314
OPERATING EXPENSES
Management fees	14,848,174	13,169,606	11,084,450
Valuation fees	351,752	313,437	290,445
Administrative services expenses	1,810,576	1,798,966	1,781,603
Income incentive fees	3,782,151	3,043,470	2,527,813
Capital gains incentive (reversal) fees	(2,818,623)	2,867,131	(359,892)
Professional fees	1,103,693	1,082,917	950,716
Directors' fees	329,000	315,000	394,816
Insurance expense	503,907	482,140	384,774
Interest expense and other fees	24,469,285	18,721,058	15,950,087
Income tax expense	1,161,668	1,102,374	771,134
Other general and administrative expenses	984,309	1,006,428	890,465
Total Operating Expenses	46,525,892	43,902,527	34,666,411
Net Investment Income	28,586,684	19,776,467	21,991,903
Net realized gain (loss) on non-controlled, non-affiliated investments	3,660,595	23,710,167	(10,129,859)
Net realized loss on foreign currency translation	(6,091)
Loss on debt extinguishment		(539,250)
Net change in unrealized (depreciation) appreciation on non-controlled non-affiliated investments	(17,542,230)	(6,928,160)	8,555,274
Net change in unrealized appreciation on foreign currency translation	6,040
(Provision) benefit for taxes on net unrealized (appreciation) depreciation on investments	(213,214)	510,868	(224,877)
Provision for taxes on realized gain on investments		(2,957,220)
Net Increase in Net Assets Resulting from Operations	$ 14,491,784	$ 33,572,872	$ 20,192,441
Net Investment Income Per Share - basic	$ 1.46	$ 1.01	$ 1.13
Net Investment Income Per Share - diluted	1.46	1.01	1.13
Net Increase in Net Assets Resulting from Operations Per Share Basic (in dollars per share)	0.74	1.72	1.04
Net Increase in Net Assets Resulting from Operations Per Share Diluted (in dollars per share)	$ 0.74	$ 1.72	$ 1.04
Weighted Average Shares of Common Stock Outstanding Basic	19,552,931	19,489,750	19,471,500
Weighted Average Shares of Common Stock Outstanding Diluted	19,552,931	19,489,750	19,471,500
Distributions Per Share - basic and diluted	$ 1.30	$ 1.14	$ 1.15