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EARNINGS PER SHARE - Summary (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Basic    
Net income attributable to common shareholders $ 17,761 $ 21,266
Weighted average common shares outstanding (shares) 10,505 10,717
Basic earnings per share (USD per share) $ 1.69 $ 1.98
Diluted    
Net income attributable to common shareholders $ 17,761 $ 21,266
Weighted average common shares outstanding (shares) 10,505 10,717
Add: Dilutive stock options outstanding (shares) 9 10
Average shares and dilutive potential common shares (shares) 10,514 10,727
Diluted earnings per share (USD per share) $ 1.69 $ 1.98
Additional common stock option shares that have not been included due to their antidilutive effect (shares) 21 21