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Pension Plans (Details Textual) (USD $)
3 Months Ended 9 Months Ended
Oct. 03, 2014
Sep. 27, 2013
Oct. 03, 2014
Sep. 27, 2013
Jul. 05, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments $ 400,000   $ 1,200,000    
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements 200,000   700,000    
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments 150,000 0 687,000 0  
Defined Benefit Plan, Benefit Obligation         600,000
Maximum [Member]
         
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Defined Benefit Plan, Funded Percentage         2.50%
Minimum [Member]
         
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Defined Benefit Plan, Funded Percentage         2.00%
Swiss Plan [Member]
         
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Defined Benefit Plan, Contributions By Employer     $ 279,000 $ 175,000