Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010	Dec. 31, 2011 Trademarks [Member] years	Dec. 31, 2011 Patents [Member] years	Dec. 31, 2011 Customer Relationships [Member] years	Dec. 31, 2011 Non-Compete Agreements [Member] years	Jan. 03, 2009 Native Eyewear, Inc. [Member]	Dec. 31, 2011 Cross Optical Group [Member]	Jan. 01, 2011 Cross Optical Group [Member]	Jan. 02, 2010 Cross Optical Group [Member]	Dec. 31, 2011 Cross Optical Group [Member] Native Eyewear, Inc. [Member]	Dec. 31, 2011 Cross Accessory Division [Member]
Goodwill and Other Intangible Assets [Line Items]
Cumulative goodwill impairment loss													$ 3,900,000
Carrying value of goodwill	15,279,000	15,279,000	15,279,000						15,279,000	15,279,000	15,279,000
Acquisition related goodwill								11,900,000
Acquisition related goodwill, tax deductible portion												11,900,000
Average useful life of patents and trademarks, years				5	5	7	4
Amortization expense of intangible assets	$ 700,000	$ 1,200,000	$ 1,000,000