Note 2 - Investment Securities (Details Textual) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2024
USD ($)
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2024
USD ($)
|
Dec. 31, 2024
USD ($)
|
|
| Proceeds from Sale of Debt Securities, Available-for-Sale | $ 0 | $ 0 | $ 0 | $ 0 | |
| Debt Securities, Available-for-Sale, Excluding Accrued Interest | $ 285,023,000 | $ 285,023,000 | $ 292,590,000 | ||
| Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | 269 | 269 | 284 | ||
| Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest | $ 0 | $ 0 | $ 0 | ||
| Asset Pledged as Collateral without Right [Member] | |||||
| Debt Securities, Available-for-Sale, Excluding Accrued Interest | $ 19,765,000 | $ 19,765,000 | $ 22,892,000 | ||