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Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Retained Earnings [Member]        
Cash dividends per share (in dollars per share) $ 0.17 $ 0.16 $ 0.51 $ 0.48
Treasury acquired, shares (in shares) 45,638 165,058 141,002 346,103