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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
EARNINGS PER SHARE    
Net income $ 13,012 $ 9,112
Average number of basic common shares outstanding (in shares) 15,109,847 15,010,834
Plus: dilutive effect of stock options and awards outstanding (in shares) 80,242 90,951
Average number of diluted common shares outstanding (in shares) 15,190,089 15,101,785
Earnings per share:    
Basic (in dollars per share) $ 0.86 $ 0.61
Diluted (in dollars per share) $ 0.86 $ 0.60