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NET INCOME PER COMMON SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Basic:        
Net income $ 4,421 $ 2,055 $ 11,951 $ 1,307
Weighted average common shares (in shares) 48,751 47,880 48,521 47,599
Earnings per share (in dollars per share) $ 0.09 $ 0.04 $ 0.25 $ 0.03
Diluted:        
Net income $ 4,421 $ 2,055 $ 11,951 $ 1,307
Basic weighted average common shares (in shares) 48,751 47,880 48,521 47,599
Potential common shares (in shares) 2,759 2,028 3,192 1,947
Diluted weighted average common shares (in shares) 51,510 49,908 51,713 49,546
Diluted earnings per share (in dollars per share) $ 0.09 $ 0.04 $ 0.23 $ 0.03