Geographic and Product Data (Details Textual)	3 Months Ended
	Apr. 04, 2014	Mar. 29, 2013
Geographic and Product Data [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	The Company markets and sells its products in over 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 exceed 5% of consolidated sales. Sales are generally 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.
Number of Countries in which Entity Operates	60
Segment Sales To Consolidated Sales Percentage	100.00%
Single Customer [Member]
Geographic and Product Data [Line Items]
Concentration Risk, Percentage	13.00%	11.00%