Note 5 - Core Deposits and Customer List Intangible Assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Gross carrying amount | $ 32,047 | $ 32,047 |
| Accumulated amortization | (20,686) | (19,887) |
| Intangible | 11,361 | 12,160 |
| Core Deposits [Member] | ||
| Gross carrying amount | 20,191 | 20,191 |
| Accumulated amortization | (13,998) | (13,503) |
| Intangible | 6,193 | 6,688 |
| Customer Lists [Member] | ||
| Gross carrying amount | 11,856 | 11,856 |
| Accumulated amortization | (6,688) | (6,384) |
| Intangible | $ 5,168 | $ 5,472 |
| X | ||||||||||
- Definition Amount of accumulated amortization of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, before accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
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