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Consolidated Schedule of Investments (Unaudited) (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Nov. 09, 2022	Aug. 13, 2019
Debt Instrument, Face Amount	$ 633,696	$ 582,573
Percentage of Nonqualifying Assets on a Cost Basis	4.50%	6.50%
Percentage of Nonqualifying Assets on a Fair Value Basis	3.90%	6.60%
Asset-backed Notes 2019 [Member]
Debt Instrument, Face Amount	$ 18,696	$ 42,573		$ 160,000
Asset-backed Notes 2019 [Member] | Affiliated Entity [Member]
Debt Instrument, Face Amount				$ 100,000
Asset-backed Notes 2022 [Member]
Debt Instrument, Face Amount	$ 100,000	$ 100,000	$ 157,800
Asset-backed Notes 2022 [Member] | Affiliated Entity [Member]
Debt Instrument, Face Amount			$ 100,000

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