Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment, Net (Details)

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Property and Equipment, Net (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2013
Dec. 29, 2012
Summary of property and equipment    
Property and equipment, gross $ 80,459 $ 78,242
Less accumulated depreciation, amortization and impairment (53,336) (49,683)
Property and equipment, net 27,123 28,559
Land [Member]
    
Summary of property and equipment    
Property and equipment, gross 630 630
Building [Member]
    
Summary of property and equipment    
Property and equipment, gross 10,680 10,680
Machinery and equipment [Member]
    
Summary of property and equipment    
Property and equipment, gross 13,269 13,249
Computer software (purchased and developed) and equipment [Member]
    
Summary of property and equipment    
Property and equipment, gross 49,111 46,884
Vehicles [Member]
    
Summary of property and equipment    
Property and equipment, gross 261 261
Leasehold improvements [Member]
    
Summary of property and equipment    
Property and equipment, gross 2,370 2,364
Furniture and fixtures [Member]
    
Summary of property and equipment    
Property and equipment, gross 1,134 1,131
Construction in process [Member]
    
Summary of property and equipment    
Property and equipment, gross $ 3,004 $ 3,043