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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, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]            
Net loss $ (6,520) $ (8,805) $ (3,460) $ 380 $ (15,325) $ (3,080)
Weighted-average shares outstanding - Basic (in shares) 21,123   21,531   21,174 21,642
Effect of dilutive securities:            
Weighted-average shares outstanding - diluted (in shares) 21,123   21,531   21,174 21,642
Basic income (loss) per common share (usd per share) $ (0.31)   $ (0.16)   $ (0.72) $ (0.14)
Diluted income (loss) per common share (usd per share) $ (0.31)   $ (0.16)   $ (0.72) $ (0.14)
Antidilutive securities (in shares) 1,624   1,704   1,603 1,671
Stock options and other stock awards            
Effect of dilutive securities:            
Stock options and other stock awards (in shares) 0   0   0 0