Note 3 - Securities (Details Textual) Pure in Thousands |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2026
USD ($)
|
Mar. 31, 2025
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Equity Securities, FV-NI, Current | $ 3,434,000 | $ 3,424,000 | |
| Equity Securities, FV-NI, Realized Gain (Loss) | 0 | $ 0 | |
| Equity Securities, FV-NI, Unrealized Gain (Loss) | (22,000) | $ 59,000 | |
| Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss | 4,796,000 | 5,197,000 | |
| Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest | $ 0 | 0 | |
| Number of Debt Securities, Available-for-sale, Sold | 0 | 0 | |
| Debt Securities, Available-for-Sale, Realized Gain (Loss) | $ (5,000) | $ 0 | |
| Asset Pledged as Collateral [Member] | Public Funds [Member] | |||
| Debt Securities | $ 341,857,000 | $ 349,507,000 | |
| X | ||||||||||
- Definition The number of available for sale debt securities sold during the period. No definition available.
|
| X | ||||||||||
- Definition Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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