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INCOME (LOSS) PER COMMON SHARE - Calculations of Basic and Diluted Loss per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]    
Net income $ 380 $ 3,067
Weighted-average shares outstanding - Basic (in shares) 21,755 21,086
Effect of dilutive securities:    
Weighted-average shares outstanding - diluted (in shares) 22,148 21,771
Basic income (loss) per common share (usd per share) $ 0.02 $ 0.15
Diluted income (loss) per common share (usd per share) $ 0.02 $ 0.14
Antidilutive securities (in shares) 430 421
Stock options and other stock awards    
Effect of dilutive securities:    
Stock options and other stock awards (in shares) 393 685