Note 4 - Investment Securities - Amortized Cost and Fair Value of Investment Securities Classified as HTM (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Amortized Cost | $ 47,217 | $ 48,199 |
| Gross Unrealized Gains | 2,430 | 2,518 |
| Gross Unrealized Losses | (197) | (177) |
| Fair Value | 49,450 | 50,540 |
| US States and Political Subdivisions Debt Securities [Member] | ||
| Amortized Cost | 45,392 | 46,331 |
| Gross Unrealized Gains | 2,430 | 2,518 |
| Gross Unrealized Losses | (6) | (3) |
| Fair Value | 47,816 | 48,846 |
| Residential Mortgage-Backed Securities [Member] | ||
| Amortized Cost | 1,825 | 1,868 |
| Gross Unrealized Gains | 0 | 0 |
| Gross Unrealized Losses | (191) | (174) |
| Fair Value | $ 1,634 | $ 1,694 |
| X | ||||||||||
- Definition Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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- Details
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