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Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - $ / shares shares in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Shares of restricted stock awards surrendered (in shares) | 3,115 | 1,904
Cash dividends per share (in dollars per share) | $ 1.24 | $ 1.24

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