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Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Statement Of Stockholders Equity [Abstract]    
Issuance of restricted stock, stock incentive plan, shares 21,261 19,238
Issuance of common stock, dividend investment plan, shares 16,194 13,239
Issuance of common stock, employee benefit plan, shares 5,577 7,204
Retirement of common stock, shares 4,749 67,189
Dividends declared, per share $ 1.10 $ 1.04