Note 8 - Fair Value - Reconciliation of Level 3 Inputs Measured on Recurring Basis (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Beginning Balance | $ 488 | $ 1,419 | $ 1,218 | $ 1,409 |
| Transfers between levels | 0 | 0 | 0 | 0 |
| Acquired and/or purchased | 0 | 0 | 0 | 0 |
| Discount accretion (premium amortization) | 2 | 15 | 10 | 44 |
| Repayments, calls and maturities | 0 | (430) | (750) | (430) |
| Changes in unrealized gains (losses) | (4) | (46) | 8 | (65) |
| Ending Balance | $ 486 | $ 958 | $ 486 | $ 958 |
| X | ||||||||||
- Definition Amount of accretion of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
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| X | ||||||||||
- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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