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NET INCOME (LOSS) PER SHARE (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 29, 2013
Mar. 30, 2012
Earnings Per Share [Abstract]    
Net income (loss) $ (1,076) $ 1,530
Weighted average number of common shares used in basic net income (loss) per common share 39,784,000 39,425,000
Dilutive effect of outstanding stock options and non-vested restricted stock 0 500,000
Weighted average number of common shares used in diluted net income (loss) per common share 39,784,000 39,914,000
Net income (loss) per common share:    
Basic (in dollars per share) $ (0.03) $ 0.04
Diluted (in dollars per share) $ (0.03) $ 0.04
Anti-dilutive shares 300,000 700,000