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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY [Abstract]        
Purchase of treasury stock (in shares) 18,584 5,554 18,697 14,756
Restricted stock (in shares) 4,544 5,331 4,623 5,419
Sale of treasury stock to employees (in shares) 1,060   1,060  
Forfeited restricted stock (in shares)     39  
Cash dividends (in dollars per share) $ 0.470 $ 0.456 $ 0.941 $ 0.912