Note 2 - Securities (Details Textual) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2024
USD ($)
|
Mar. 31, 2023
USD ($)
|
Dec. 31, 2023
USD ($)
|
|
| Proceeds From Sale Of Securities | $ 0 | $ 0 | |
| Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions | 423 | 402 | |
| Debt Securities, Available-for-Sale, Unrealized Loss Position | $ 478,312 | $ 454,951 | |
| Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss | $ 30,429 | $ 29,433 | |
| Held-to-Maturity, Securities in Unrealized Loss Positions, Number of Positions | 75 | 58 | |
| Debt Securities, Held-to-Maturity, Unrealized Loss Positions, Fair Value | $ 281,786 | $ 288,895 | |
| Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Losses | 9,330 | 9,709 | |
| Equity Method Investments, Fair Value Disclosure | 1,300 | $ 1,300 | |
| Asset Pledged as Collateral [Member] | Public Deposits Letters Of Credit And For Other Purposes [Member] | |||
| Debt Securities | $ 3,700 | ||
| X | ||||||||||
- Definition Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position. No definition available.
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| X | ||||||||||
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position. No definition available.
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| X | ||||||||||
- Definition Disclosure regarding factors used to determine that the impairment of securities categorized as held-to-maturity where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the held-to-maturity investments determined to be temporarily impaired. No definition available.
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| X | ||||||||||
- Definition The cash inflow associated with the sale of investments in debt and equity securities. No definition available.
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| 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/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
|
| X | ||||||||||
- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Fair value portion of investments accounted under the equity method. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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