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STOCK-BASED COMPENSATION - Stock Options Outstanding and Exercisable (Details) (USD $)
9 Months Ended
Sep. 27, 2014
Dec. 28, 2013
Sep. 27, 2014
Range 1
Sep. 27, 2014
Range 2
Sep. 27, 2014
Range 3
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]          
Range of Exercise Prices, Lower Limit     $ 3.15 $ 3.75 $ 10.00
Range of Exercise Prices, Upper Limit     $ 3.50 $ 3.87 $ 0.00
Number Outstanding and Exercisable 391,100 558,850 127,500 163,600 100,000
Weighted Average Exercise Price $ 5.26 $ 5.09 $ 3.49 $ 3.75 $ 10.00
Aggregate intrinsic value on September 29, 2012 $ 1,700