Note 7 - Financial Instruments (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Other Investments, Fair Value Disclosure	$ 50,575	$ 35,262
Margin Loan Collateral [Member]
Other Investments, Fair Value Disclosure	657	1,721
Share Forward Arrangements [Member]
Equity Securities, FV-NI	$ 0	$ 470

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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+ Details