CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2016	Dec. 31, 2015
OPERATING EXPENSES
Management fees	$ 15,698,129	$ 15,452,347	$ 14,848,174
Valuation fees	380,239	373,628	351,752
Administrative services expenses	1,916,283	1,908,191	1,810,576
Income incentive fees	10,045,966	10,189,888	3,782,151
Capital gains incentive fee reversal		(569,528)	(2,818,623)
Professional fees	1,190,232	1,455,372	1,103,693
Directors' fees	412,000	406,000	329,000
Insurance expense	499,913	492,596	503,907
Interest expense and other fees	31,506,068	32,011,317	24,469,285
Income tax expense	1,808,838	1,333,452	1,161,668
Other general and administrative expenses	1,175,765	891,170	984,309
Total Operating Expenses	64,633,433	63,944,433	46,525,892
Income incentive fee waiver	(1,826,893)	(307,442)
Total Operating Expenses, net of fee waivers	62,806,540	63,636,991	46,525,892
Net Investment Income	41,929,593	42,210,577	28,586,684
Net realized (loss) gain on non-controlled, non-affiliated investments	(15,737,004)	(30,211,467)	3,660,595
Net realized loss on foreign currency translations	(94,730)	(112,481)	(6,091)
Net change in unrealized appreciation (depreciation) on controlled investments	19,570,409	2,792,152	(17,542,230)
Net change in unrealized appreciation (depreciation) on non-controlled, non-affiliated investments	18,743,637	3,222,729	(17,542,230)
Net change in unrealized (depreciation) appreciation on foreign currency translations	(14,755)	(6,504)	6,040
Benefit (provision) for taxes on net unrealized depreciation (appreciation) on investments	188,893	(126,957)	(213,214)	$ 510,868	$ (224,877)	$ (66,760)	$ 373,131	$ (93,601)
Benefit for taxes on net realized loss on investments	2,221	2,987,847		$ (2,957,220)
Net Increase in Net Assets Resulting from Operations	$ 45,844,627	$ 17,533,167	$ 14,491,784
Net Investment Income Per Share - basic	$ 1.64	$ 1.92	$ 1.46
Net Investment Income Per Share - diluted	1.64	1.92	1.46
Net Increase in Net Assets Resulting from Operations Per Share Basic (in dollars per share)	1.79	0.8	0.74
Net Increase in Net Assets Resulting from Operations Per Share Diluted (in dollars per share)	$ 1.79	$ 0.8	$ 0.74
Weighted Average Shares of Common Stock Outstanding Basic	25,596,593	22,004,648	19,552,931	19,489,750	19,471,500	18,275,696	12,479,959	12,479,961
Weighted Average Shares of Common Stock Outstanding Diluted	25,596,593	22,004,648	19,552,931	19,489,750	19,471,500	18,275,696	12,479,959	12,479,961
Distributions Per Share-basic and diluted	$ 1.61	$ 1.61	$ 1.3
Controlled investments
INVESTMENT INCOME
Interest income	$ 81,636	$ 37,897
OPERATING EXPENSES
Net change in unrealized appreciation (depreciation) on controlled investments	826,772	(430,577)
Non-controlled/non-affiliated
INVESTMENT INCOME
Interest income	99,804,184	101,978,891	$ 72,964,999
Other income	4,850,313	3,830,780	2,147,577
Total Investment Income	$ 104,736,133	$ 105,847,568	$ 75,112,576