Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Investment income
Interest income:	$ 37,022	$ 41,699	$ 53,208
Payment-in-kind interest and dividend income:	2,719	2,733	2,597
Dividend income:	546	3,027	659
Total investment income	40,691	47,964	56,943
Expenses
Interest expense	16,510	16,648	19,482
Base management fees	5,769	5,993	7,218
Income Incentive Fee	1,758	4,178	5,040
Professional fees	1,623	1,630	1,681
Administration fees	1,557	1,521	1,680
Other expenses	1,090	1,282	1,682
Total expenses	28,307	31,252	36,783
Net investment income	12,384	16,712	20,160
Net realized and unrealized gain (loss) on investments
Net realized (loss) gain	(12,158)	(17,121)	(11,405)
Income tax (expense) benefit on net realized gains on investments	1	(9)	(51)
Deferred tax expense on net unrealized appreciation	(311)	(510)	(69)
Net gain (loss) on investments	(44,973)	11,730	(20,412)
Loss on extinguishment of debt	(504)	0	(213)
Net increase (decrease) in net assets resulting from operations	$ (33,093)	$ 28,442	$ (465)
Net investment income per common share - basic (in usd per share)	$ 0.92	$ 1.25	$ 1.50
Net investment income per common share - diluted (in usd per share)	0.92	1.25	1.50
Net increase (decrease) in net assets resulting from operations per common share - basic (in usd per share)	(2.47)	2.12	(0.04)
Net increase (decrease) in net assets resulting from operations per common share - diluted (in usd per share)	(2.47)	2.12	(0.04)
Distributions declared per common share (in usd per share)	$ 1.19	$ 1.36	$ 1.34
Basic weighted-average common shares outstanding (in shares)	13,398,078	13,398,078	13,398,078
Diluted weighted-average common shares outstanding (in shares)	13,398,078	13,398,078	13,398,078
Non-control/non-affiliate investments
Investment income
Interest income:	$ 37,017	$ 41,699	$ 53,208
Payment-in-kind interest and dividend income:	1,312	1,635	1,461
Dividend income:	273	43	29
Fee income:	404	505	479
Net realized and unrealized gain (loss) on investments
Net realized (loss) gain	(12,159)	(10,606)	(838)
Net unrealized appreciation (depreciation) on investments	(15,989)	4,035	(7,033)
Affiliate investments
Investment income
Interest income:	5	0	0
Payment-in-kind interest and dividend income:	1,407	1,098	1,136
Dividend income:	273	2,984	630
Net realized and unrealized gain (loss) on investments
Net realized (loss) gain	0	(6,506)	0
Net unrealized appreciation (depreciation) on investments	(16,515)	25,326	(10,961)
Control investments
Net realized and unrealized gain (loss) on investments
Net realized (loss) gain	0	0	(10,516)
Net unrealized appreciation (depreciation) on investments	$ 0	$ 0	$ 9,056