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Geographic and Product Data (Details Textual)
 12 Months Ended
Jan. 03, 2014
Geographic and Product Data [Line Items]  
Disclosure on Geographic Areas, Description of Revenue from External Customers The Company markets and sells its products in approximately 60 countries and has manufacturing sites in the United States and Switzerland. Other than the United States, Japan, Korea, China, and Spain, the Company does not conduct business in any country in which its sales in that country exceed 5% of consolidated sales. Sales are attributed to countries based on location of customers.100% of the Company’s sales are generated from the ophthalmic surgical product segment and, therefore, the Company operates as one operating segment for financial reporting purposes.