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Consolidated Statements of Changes in Shareholders' Equity (Parentheticals) - $ / shares | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Common Stock [Member] | Stock Incentive Plan [Member] |  |
Repurchase of common stock shares (in shares) | 6,495 | 8,283
Common Stock [Member] | Stock Repurchase Plan [Member] |  |
Repurchase of common stock shares (in shares) | 37,532 |
Common Stock [Member] |  |
Issuance of common stock, dividend reinvestment plan, shares (in shares) | 9,214 | 10,384
Issuance of common stock, stock incentive plan, shares (in shares) | 33,002 | 34,634
Cash dividends on common stock, per share (in dollars per share) | $ 0.6 | $ 0.56
Issuance of common stock, dividend reinvestment plan, shares (in shares) | 9,214 | 10,384

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