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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares | 3 Months Ended | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Employee stock purchase plan (in shares) | 322 | 320 | 598 | 610
Dividend reinvestment plan (in shares) | 4,687 | 5,423 | 9,257 | 10,990
Stock grants to directors for retainer fees (in shares) | 9,210 | 11,247 | 9,810 | 11,316
Cash dividends per common share (in dollars per share) | $ 0.37 | $ 0.35 | $ 0.74 | $ 0.7

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