Note 2 - Summary of Significant Accounting Policies - Amortized Cost to Fair Value of HTM Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Amortized cost	$ 21,465	$ 19,933
Gross unrecognized gains	24	76
Gross unrecognized losses	(11)	0
Fair value	$ 21,478	$ 20,009

Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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+ Details

- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

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+ Details