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Property and Equipment, Net (Schedule Of Property And equipment) (Details) - USD ($)
$ in Thousands
Jan. 01, 2016
Jan. 02, 2015
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 31,434 $ 28,600
Less accumulated depreciation (17,332) (14,847)
Property, Plant and Equipment, Net, Total 14,102 13,753
Equipment [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 6,460 6,044
Software [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 24,049 21,604
Leasehold Improvements [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 431 454
Furniture And Fixtures [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 494 $ 498