Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment, Net - Summary of Property and Equipment (Detail)

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Property and Equipment, Net - Summary of Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 28, 2014
Dec. 28, 2013
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 85,073 $ 82,207
Less accumulated depreciation, amortization and impairment (67,137) (62,544)
Property and equipment, net 17,936 19,663
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 630 630
Building [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 8,877 8,877
Machinery and equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 12,442 12,163
Computer software (purchased and developed) and equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 58,519 55,383
Vehicles [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 260 264
Leasehold improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 1,778 1,767
Furniture and fixtures [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 1,097 1,057
Construction in process [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 1,470 $ 2,066