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Note 6 - Other Assets - Summary of Major Components of Other Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025 | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | --- | --- | ---
Cash surrender value of life insurance other than BOLI | $ 21,667 | $ 22,156 |  |
Net deferred tax asset | 43,451 | 44,667 |  |
Investments in tax credit partnerships | 189,268 | 194,643 |  |
Derivative assets | 3,244 | 4,501 |  |
Prepaid assets | 8,783 | 8,818 |  |
WM&T fees receivable | 5,352 | 5,253 |  |
Mortgage servicing rights | 9,776 | 10,189 | $ 10,817 | $ 11,333
Other real estate owned | 190 | 190 |  |
Other | 26,061 | 14,589 |  |
Total other assets | $ 307,792 | $ 305,006 |  |

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