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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 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                
Net income (loss) $ 4,206 $ (6,520) $ (8,805) $ (6,358) $ (3,460) $ 380 $ (11,119) $ (9,438)
Weighted-average shares outstanding - Basic (in shares) 21,216     21,522     21,188 21,602
Effect of dilutive securities:                
Weighted-average shares outstanding - diluted (in shares) 21,293     21,522     21,188 21,602
Basic income (loss) per common share (usd per share) $ 0.20     $ (0.30)     $ (0.52) $ (0.44)
Diluted income (loss) per common share (usd per share) $ 0.20     $ (0.30)     $ (0.52) $ (0.44)
Antidilutive securities (in shares) 1,237     1,682     1,600 1,675
Stock options and other stock awards                
Effect of dilutive securities:                
Stock options and other stock awards (in shares) 77     0     0 0