Statements of Changes in Net Assets (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Beginning balance	$ 576,052	$ 606,195
Beginning balance, Shares	40,509,269
Net increase in net assets resulting from operations	$ 11,984	2,853
Reinvestment of dividends, value	$ 0	$ 400
Reinvestment of dividends, Shares	0	31,782
Acquisition of treasury shares, value		$ (409)
Dividends paid to stockholders	$ (18,229)	(11,173)
Ending balance	$ 569,807	597,466
Ending balance, Shares	40,509,269
Common Stock
Beginning balance	$ 414	$ 414
Beginning balance, Shares	40,509,269	41,380,614
Acquisition of treasury shares		(31,782)
Ending balance	$ 414	$ 414
Ending balance, Shares	40,509,269	41,348,832
Treasury Stock
Beginning balance	$ (10,816)
Acquisition of treasury shares, value		$ (409)
Ending balance	(10,816)	(409)
Paid-in Capital in Excess of Par Value
Beginning balance	605,774	606,048
Ending balance	605,774	606,048
Accumulated Undistributed Earnings (Losses)
Beginning balance	(19,320)	(267)
Net increase in net assets resulting from operations	11,984	2,853
Dividends paid to stockholders	(18,229)	(11,173)
Ending balance	$ (25,565)	$ (8,587)