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Note 12 - Subsequent Events (Details Textual) - USD ($) $ in Thousands	Jul. 30, 2024	Jul. 12, 2024	Jul. 11, 2024	Jul. 10, 2024	Jun. 30, 2024	Dec. 31, 2023
Investment Owned, Fair Value					$ 646,862	$ 709,085
MyForest Foods Co [Member] | Debt Securities [Member] | Subsequent Event [Member]
Proceeds from Sale, Maturity and Collection of Investments				$ 3,800
Lemongrass Holdings, Inc [Member] | Debt Securities [Member] | Subsequent Event [Member]
Proceeds from Sale, Maturity and Collection of Investments			$ 6,300
Slingshot Aerospace, Inc. [Member] | Debt Securities [Member] | Subsequent Event [Member]
Proceeds from Sale, Maturity and Collection of Investments		$ 20,000
Nexii Building Solutions, Inc [Member] | Debt Securities [Member]
Investment Owned, Fair Value					$ 10,900
Hometeam Technologies, Inc [Member] | Debt Securities [Member] | Subsequent Event [Member]
Payments to Acquire Investments	$ 25,000

X

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