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EARNINGS PER SHARE - Earnings per share basic and diluted (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Numerator:    
Net earnings (loss) $ 20,555 $ (8,485)
Denominator:    
Basic weighted average shares outstanding (in shares) 9,662 9,757
Effect of dilutive securities:    
Employee share-based awards (in shares) 31  
Diluted weighted average shares outstanding (in shares) 9,693 9,757
Basic earnings (loss) per share (in dollars per share) $ 2.13 $ (0.87)
Diluted earnings (loss) per share (in dollars per share) $ 2.12 $ (0.87)