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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
EARNINGS PER SHARE        
Net income (loss) $ (53) $ 847 $ 342 $ (1,630)
Denominator for basic earnings (loss) per share: weighted average shares 9,020 8,816 8,914 8,715
Employee stock options and awards $ 0 $ 43 $ 151 $ 0
Denominator for diluted earnings (loss) per share: adjusted weighted-average shares and assumed conversions of stock options 9,020 8,859 9,065 8,715
Basic earnings (loss) per share $ (0.01) $ 0.10 $ 0.04 $ (0.19)
Diluted earnings (loss) per share $ (0.01) $ 0.10 $ 0.04 $ (0.19)