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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 6 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2022
Jun. 30, 2021
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]            
Net (loss) income $ (3,460) $ 380 $ 5,789 $ 3,067 $ (3,080) $ 8,856
Weighted-average shares outstanding - Basic (in shares) 21,531   21,322   21,642 21,239
Effect of dilutive securities:            
Weighted-average shares outstanding - diluted (in shares) 21,531   21,965   21,642 21,903
Basic income (loss) per common share (usd per share) $ (0.16)   $ 0.27   $ (0.14) $ 0.42
Diluted income (loss) per common share (usd per share) $ (0.16)   $ 0.26   $ (0.14) $ 0.40
Antidilutive securities (in shares) 1,704   423   1,671 422
Stock options and other stock awards            
Effect of dilutive securities:            
Stock options and other stock awards (in shares) 0   643   0 664