Note 13 - Business Combinations - Business Combination, Pro Forma Information (Details) - Eastern Michigan Bank [Member] - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Net interest income | $ 60,872 | $ 57,455 | $ 173,800 | $ 165,838 |
| Provision for credit losses | 700 | 179 | (2,900) | 3,586 |
| Noninterest income | 12,303 | 10,954 | 35,437 | 32,104 |
| Noninterest expense | 43,226 | 38,803 | 123,917 | 112,279 |
| Income before income taxes | 29,249 | 29,427 | 88,220 | 82,077 |
| Income tax expense | 4,815 | 4,212 | 14,561 | 13,130 |
| Net income | $ 24,434 | $ 25,215 | $ 73,659 | $ 68,947 |
| Earnings per share (in dollars per share) | $ 1.41 | $ 1.47 | $ 4.27 | $ 4.02 |
| X | ||||||||||
- Definition Amount, before tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. No definition available.
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| X | ||||||||||
- Definition Amount of pro forma income tax expense of combined entity as if acquisition date of business combination occurred as of beginning of period. No definition available.
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| X | ||||||||||
- Definition Amount of pro forma net interest income of combined entity as if acquisition date of business combination occurred as of beginning of period. No definition available.
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| X | ||||||||||
- Definition Amount of pro forma noninterest expense of combined entity as if acquisition date of business combination occurred as of beginning of period. No definition available.
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| X | ||||||||||
- Definition Amount of pro forma noninterest income of combined entity as if acquisition date of business combination occurred as of beginning of period. No definition available.
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| X | ||||||||||
- Definition Amount of pro forma provision for credit losses of combined entity as if acquisition date of business combination occurred as of beginning of period. No definition available.
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| X | ||||||||||
- Definition Per basic share amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Details
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