Note 3 - Investment Securities (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Equity Securities, FV-NI	$ 1,517		$ 371
Equity Securities, FV-NI, Unrealized Gain (Loss)	(104)	$ 195
Precision BioSciences, Inc. [Member]
Equity Securities, FV-NI	1,500
Equity Securities, FV-NI, Unrealized Gain (Loss)	$ 300

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