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Consolidated Statements of Financial Condition (Parentheticals) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
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Statement of Financial Position [Abstract] |  |
Securities held-to-maturity, allowance for credit losses | $ 1,087 | $ 1,100
Securities held-to-maturity, assets pledged | 4,647 | 4,550
Securities held-to-maturity, fair value | 67,869 | 62,550
Securities available for sale, pledged as collateral | 193,558 | 172,235
Securities available for sale, fair value option | $ 13,192 | $ 13,023
Preferred stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Preferred stock, shares authorized (in shares) | 5,000,000 | 5,000,000
Preferred stock, shares issued (in shares) | 0 | 0
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized (in shares) | 100,000,000 | 100,000,000
Common stock, shares issued (in shares) | 34,087,623 | 34,087,623
Common stock, shares outstanding (in shares) | 29,488,456 | 29,476,391
Treasury stock, at average cost (in shares) | 4,599,167 | 4,611,232

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