Note 8 - Marketable Securities - Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Amortized Cost	$ 5,321	$ 5,113
Corporate, municipal debt and treasury securities	5,511	$ 5,230
Corporate and Municipal Debt Securities [Member]
Amortized Cost	5,321
Unrealized Gain	190
Corporate, municipal debt and treasury securities	$ 5,511

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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+ Details