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Geographic and Product Data (Tables)
6 Months Ended
Jun. 29, 2012
Segment Reporting [Abstract]  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
The composition of the Company’s net sales to unaffiliated customers is set forth below (in thousands):

 

    Three Months Ended     Six Months Ended  
    June 29,     July 1,     June 29,     July 1,  
    2012     2011     2012     2011  
United States   $ 3,216     $ 3,705     $ 6,390     $ 7,238  
Japan     4,094       3,890       7,951       7,734  
Korea     1,721       2,009       3,624       3,394  
China     2,141       1,803       4,247       3,007  
Other     4,770       4,862       9,239       9,745  
Total   $ 15,942     $ 16,269     $ 31,451     $ 31,118
Revenue from External Customers by Products and Services [Table Text Block]
The composition of the Company’s net sales by product line is as follows (in thousands):

 

    Three Months Ended     Six Months Ended  
    June 29,     July 1,     June 29,     July 1,  
    2012     2011     2012     2011  
ICLs   $ 8,606     $ 8,293     $ 17,211     $ 15,191  
IOLs     6,774       7,076       13,132       14,205  
Core products     15,380       15,369       30,343       29,396  
Other Surgical Products     562       900       1,108       1,722  
Total   $ 15,942     $ 16,269     $ 31,451     $ 31,118