Annual report pursuant to Section 13 and 15(d)

Property, Plant, and Equipment (Details)

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Property, Plant, and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 28, 2013
Dec. 29, 2012
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 141,423 $ 135,136
Less: Accumulated depreciation (86,484) (80,154)
Construction in progress 20,792 9,690
Total 75,731 64,672
Machinery and equipment
   
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 92,549 83,480
Office furniture and equipment
   
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 7,969 11,152
Buildings
   
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 30,771 30,255
Leasehold and land improvements
   
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 2,644 2,785
Land
   
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 7,490 $ 7,464