CONSOLIDATED STATEMENTS OF CHANGES IN NET ASSETS (unaudited) - USD ($)	3 Months Ended				6 Months Ended		12 Months Ended		150 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2024
Investment Company, Changes in Net Assets
Beginning balance	$ 323,440,404	$ 319,939,788	$ 280,852,045	$ 275,776,613	$ 319,939,788	$ 275,776,613	$ 275,776,613
Beginning balance (shares)		24,125,642			24,125,642
Net investment income	11,792,661	$ 10,235,916	10,413,244	9,067,620
Net realized gain (loss) on investments	1,992,482	(20,384,731)	(310,588)	34,967	$ (18,392,249)	(275,621)
Net realized loss on foreign currency translations	(29,789)	(25,106)	(10,704)	(39,912)
Net change in unrealized appreciation on controlled investments	(5,586,681)	23,518,590	(6,295,233)	(4,249,642)
Net change in unrealized appreciation on foreign currency translations	(5,887)	(3,602)	(20,323)	1,874
Provision for taxes on unrealized appreciation on investments	381,500	(192,607)	(65,353)	(78,760)
Distributions from net investment income	(10,049,073)	(9,647,844)	(8,659,144)	(7,951,284)
Issuance of common stock, net of offering costs	$ 25,249,876		32,421,084	8,290,569
Issuance of common stock, net of offering costs (shares)	1,855,356						4,458,873	149,174	25,980,998
Ending balance	$ 347,185,493	323,440,404	308,325,028	280,852,045	$ 347,185,493	308,325,028	$ 319,939,788	$ 275,776,613	$ 347,185,493
Ending balance (shares)	25,980,998				25,980,998		24,125,642		25,980,998
Common Stock
Investment Company, Changes in Net Assets
Beginning balance	$ 24,125	$ 24,125	$ 20,248	$ 19,667	$ 24,125	$ 19,667	$ 19,667
Beginning balance (shares)	24,125,642	24,125,642	20,248,383	19,666,769	24,125,642	19,666,769	19,666,769
Issuance of common stock, net of offering costs	$ 1,856		$ 2,310	$ 581
Issuance of common stock, net of offering costs (shares)	1,855,356		2,309,521	581,614
Ending balance	$ 25,981	$ 24,125	$ 22,558	$ 20,248	$ 25,981	$ 22,558	$ 24,125	$ 19,667	$ 25,981
Ending balance (shares)	25,980,998	24,125,642	22,557,904	20,248,383	25,980,998	22,557,904	24,125,642	19,666,769	25,980,998
Paid-in capital
Investment Company, Changes in Net Assets
Beginning balance	$ 335,918,984	$ 335,918,984	$ 283,404,708	$ 275,114,720	$ 335,918,984	$ 275,114,720	$ 275,114,720
Issuance of common stock, net of offering costs	25,248,020		32,418,774	8,289,988
Ending balance	361,167,004	335,918,984	315,823,482	283,404,708	361,167,004	315,823,482	335,918,984	$ 275,114,720	$ 361,167,004
Total distributable earnings (loss)
Investment Company, Changes in Net Assets
Beginning balance	(12,502,705)	(16,003,321)	(2,572,911)	642,226	(16,003,321)	642,226	642,226
Net investment income	11,792,661	10,235,916	10,413,244	9,067,620
Net realized gain (loss) on investments	1,992,482	(20,384,731)	(310,588)	34,967
Net realized loss on foreign currency translations	(29,789)	(25,106)	(10,704)	(39,912)
Net change in unrealized appreciation on controlled investments	(5,586,681)	23,518,590	(6,295,233)	(4,249,642)
Net change in unrealized appreciation on foreign currency translations	(5,887)	(3,602)	(20,323)	1,874
Provision for taxes on unrealized appreciation on investments	381,500	(192,607)	(65,353)	(78,760)
Distributions from net investment income	(10,049,073)	(9,647,844)	(8,659,144)	(7,951,284)
Ending balance	$ (14,007,492)	$ (12,502,705)	$ (7,521,012)	$ (2,572,911)	$ (14,007,492)	$ (7,521,012)	$ (16,003,321)	$ 642,226	$ (14,007,492)