CONSOLIDATED STATEMENTS OF CHANGES IN NET ASSETS - USD ($)	3 Months Ended		12 Months Ended		135 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Mar. 31, 2023
Investment Company, Changes in Net Assets [Line Items]
Beginning balance	$ 275,776,613	$ 285,111,233	$ 285,111,233
Beginning balance (shares)	19,666,769
Net investment income	$ 9,067,620	5,514,183
Net realized gain on non-controlled, non-affiliated investments	34,967	3,458,090
Net realized loss on foreign currency translation	(39,912)	(7,350)
Net change in unrealized depreciation on non-controlled, non-affiliated investments	(4,249,642)	(3,721,602)
Net change in unrealized appreciation on foreign currency translations	1,874
Provision for taxes on unrealized appreciation on investments	(78,760)
Provision for taxes on realized gain on investments		(21,157)
Distributions from net investment income	(7,951,284)	(5,464,666)
Issuance of common stock, net of offering costs	$ 8,290,569	167,670
Issuance of common stock, net of offering costs (shares)	581,614		149,174	31,592	20,248,383
Ending balance	$ 280,852,045	285,036,401	$ 275,776,613	$ 285,111,233	$ 280,852,045
Ending balance (shares)	20,248,383		19,666,769		20,248,383
Common Stock
Investment Company, Changes in Net Assets [Line Items]
Beginning balance	$ 19,667	$ 19,518	$ 19,518
Beginning balance (shares)	19,666,769	19,517,595	19,517,595
Issuance of common stock, net of offering costs	$ 581	$ 15
Issuance of common stock, net of offering costs (shares)	581,614	14,924
Ending balance	$ 20,248	$ 19,533	$ 19,667	$ 19,518	$ 20,248
Ending balance (shares)	20,248,383	19,532,519	19,666,769	19,517,595	20,248,383
Paid-in capital
Investment Company, Changes in Net Assets [Line Items]
Beginning balance	$ 275,114,720	$ 274,559,121	$ 274,559,121
Issuance of common stock, net of offering costs	8,289,988	167,655
Ending balance	283,404,708	274,726,776	275,114,720	$ 274,559,121	$ 283,404,708
Accumulated undistributed surplus (deficit)
Investment Company, Changes in Net Assets [Line Items]
Beginning balance	642,226	10,532,594	10,532,594
Net investment income	9,067,620	5,514,183
Net realized gain on non-controlled, non-affiliated investments	34,967	3,458,090
Net realized loss on foreign currency translation	(39,912)	(7,350)
Net change in unrealized depreciation on non-controlled, non-affiliated investments	(4,249,642)	(3,721,602)
Net change in unrealized appreciation on foreign currency translations	1,874
Provision for taxes on unrealized appreciation on investments	(78,760)
Provision for taxes on realized gain on investments		(21,157)
Distributions from net investment income	(7,951,284)	(5,464,666)
Ending balance	$ (2,572,911)	$ 10,290,092	$ 642,226	$ 10,532,594	$ (2,572,911)