CONSOLIDATED STATEMENTS OF CHANGES IN NET ASSETS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	23,689,363
Beginning balance	$ 263,782	$ 290,542
Preferred stock, shares outstanding, Beginning balance (in shares)	525
Common stock distributions from distributable earnings	$ 0	0
Preferred stock distributions from distributable earnings	(15)	(15)
Net decrease in net assets resulting from operations	$ (8,974)	$ 3,779
Ending balance (in shares)	23,689,363	23,689,363
Ending balance	$ 254,793	$ 294,306
Preferred stock, shares outstanding, Ending balance (in shares)	525
Common stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	23,689,363	23,689,363
Beginning balance	$ 237	$ 237
Ending balance (in shares)	23,689,363	23,689,363
Ending balance	$ 237	$ 237
Preferred stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 0	$ 0
Preferred stock, shares outstanding, Beginning balance (in shares)	525	525
Ending balance	$ 0	$ 0
Preferred stock, shares outstanding, Ending balance (in shares)	525	525
Paid-in capital in excess of par value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 351,766	$ 352,037
Ending balance	351,766	352,037
Total distributable earnings (loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(88,221)	(61,732)
Common stock distributions from distributable earnings	0	0
Preferred stock distributions from distributable earnings	(15)	(15)
Net decrease in net assets resulting from operations	(8,974)	3,779
Ending balance	$ (97,210)	$ (57,968)