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Consolidated Statements of Changes In Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Repurchase and retirement of common stock (in shares) | 146,106 | 206,196
Cash dividends declared on common stock (in dollars per share) | $ 0.10 | $ 0.10

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