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Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)
12 Months Ended
Dec. 29, 2012
segment
Dec. 31, 2011
Jan. 01, 2011
Goodwill and Other Intangible Assets [Line Items]      
Number of reporting units 2    
Carrying value of goodwill $ 15,279,000 $ 15,279,000 $ 15,279,000
Amortization 735,000 739,000 1,211,000
Cross Accessory Division [Member]
     
Goodwill and Other Intangible Assets [Line Items]      
Cumulative goodwill impairment loss 3,900,000    
Cross Optical Group [Member]
     
Goodwill and Other Intangible Assets [Line Items]      
Carrying value of goodwill 15,279,000 15,279,000 15,279,000
Cross Optical Group [Member] | Native Eyewear, Inc. [Member]
     
Goodwill and Other Intangible Assets [Line Items]      
Goodwill expected to be tax deductible $ 11,900,000 $ 11,900,000  
Trademarks [Member]
     
Goodwill and Other Intangible Assets [Line Items]      
Average useful life of intangible assets 5 years    
Patents [Member]
     
Goodwill and Other Intangible Assets [Line Items]      
Average useful life of intangible assets 5 years    
Customer Relationships [Member]
     
Goodwill and Other Intangible Assets [Line Items]      
Average useful life of intangible assets 7 years