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Consolidated Statements of Changes In Shareholders' Equity (Parenthetical) - shares
3 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Repurchased stock, Shares     5,800 12,129 80,523  
Stock issued during period shares, Director Stock Purchase Plans 1,225 1,229 1,253 2,434 2,231 1,743
Stock issued during period shares, Restricted stock activity 21,833     14,770    
Common Stock [Member]            
Stock issued during period, shares, Employee Stock Purchase Plans 1,784 1,388 1,459 2,113 2,365 1,647
Common shares issued through follow-on public offering, shares   2,990,000