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STOCK PLANS (Details 3) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Sep. 28, 2014
item
Sep. 29, 2013
STOCK PLANS        
Number of stock-based compensation plans     3  
Stock-based compensation expense $ 1,108 $ 1,064 $ 2,682 $ 2,802