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CONSOLIDATED STATEMENTS OF CONDITION (CURRENT PERIOD UNAUDITED) (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Statement of Financial Position [Abstract] |  |
Available-for-sale securities, book value | $ 705,019 | $ 796,960
Held-to-maturity securities, fair value | 483,547 | 506,193
Loans held for sale | $ 11,299 | $ 5,259
Common stock, no par value (dollars per share) | $ 0 | $ 0
Common stock, authorized (in shares) | 40,000,000 | 40,000,000
Common stock, issued (in shares) | 14,558,137 | 14,567,325
Common stock, outstanding (in shares) | 14,558,137 | 14,567,325

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