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EARNINGS PER SHARE (EPS) - Computation (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2023
Apr. 01, 2022
Net income (loss)    
Net income (loss) $ 932 $ (3,773)
Net income (loss) - basic 932 (3,773)
Net income (loss) - diluted $ 932 $ (3,773)
Weighted-average shares outstanding:    
Weighted-average common shares outstanding (in shares) 13,266 12,786
Effect of dilutive stock options and restricted stock awards (in shares) 204  
Weighted-average common shares outstanding-diluted (in shares) 13,470 12,786
Earnings (loss) per share:    
Basic (in dollars per share) $ 0.07 $ (0.30)
Diluted (in dollars per share) $ 0.07 $ (0.30)