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v3.25.1

Note 3 - Investment Securities (Details Textual) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) shares | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($)
Debt Securities, Trading | $ 3,047 |  | $ 3,309
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest | 129 |  | 131
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 0 |  |
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss | 2,000 |  | 2,000
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss | 900 |  | 1,300
Proceeds from Sale of Debt Securities, Available-for-Sale | 0 | $ 0 |
Proceeds from Calls and Sale of Debt Securities, Available-for-Sale | 10,000 | 0 |
Proceeds from Sale of Held-to-Maturity Securities | 0 | 0 |
Debt Securities, Held-to-Maturity, Nonaccrual | 0 |  | 0
Debt Securities, Held-to-Maturity, Nonaccrual, Interest Income | 0 | $ 0 |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | 920,764 |  | $ 962,272
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Allowance for Credit Loss, Recovery | $ 0 |  |
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Interest Receivable |  | Interest Receivable
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Interest Receivable |  | Interest Receivable
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss | $ 268,760 |  |
Financial Asset, Past Due [Member] |  |  |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss | $ 0 |  | $ 0
Preferred Class B [Member] | Visa [Member] |  |  |
Investment Owned, Conversion Ratio | 1.5653 |  |
Investment Owned, Balance, Shares (in shares) | shares | 6,924 |  |
Investment, Tax Basis, Cost | $ 0 |  | 0
Preferred Class A [Member] | Visa [Member] |  |  |
Investment Owned, Balance, Shares (in shares) | shares | 10,838 |  |
Asset Pledged as Collateral [Member] | Deposits [Member] |  |  |
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | $ 509,400 |  | $ 340,200

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