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Stock-Based Compensation (Narrative) (Details) (USD $)
3 Months Ended 6 Months Ended 0 Months Ended 3 Months Ended 6 Months Ended
Jun. 28, 2014
Jun. 29, 2013
Jun. 28, 2014
Jun. 29, 2013
May 01, 2014
Restricted Stock Units (RSUs) [Member]
Jun. 28, 2014
Restricted Stock Units (RSUs) [Member]
Jun. 28, 2014
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock-based compensation provision $ 836,000 $ 953,000 $ 1,672,000 $ 1,977,000      
Unrecognized share based compensation expense 1,500,000   1,500,000        
Unrecognized share based compensation costs, amortization period (years)     1 year 7 months 6 days        
RSUs issued (shares)         88,236   88,236
RSU vesting period (years)         1 year    
Fair value of RSUs vested           $ 1,100,000 $ 1,700,000