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Note 8 - Fair Value Measurements - Changes in Fair Value of Level 3 Assets and Liabilities (Details) - Investment, Available-For-Sale [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Balance, asset	$ 12,123	$ 12,495	$ 12,553	$ 13,327
Included in interest income, asset	44	43	134	132
Included in other comprehensive income (loss), asset	387	664	652	473
Settlements, asset	0	0	(785)	(730)
Balance, asset	$ 12,554	$ 13,202	$ 12,554	$ 13,202

X

- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

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- Definition

Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

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- Definition

Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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