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Share Based Compensation
3 Months Ended
Mar. 31, 2012
Share Based Compensation [Abstract]  
Share Based Compensation

12. Share Based Compensation

We account for share based compensation in accordance with ASC Topic No. 718, Compensation – Stock Compensation, which requires the measurement of compensation costs at fair value on the date of grant and recognition of compensation expense over the service period for awards expected to vest. The following presents the impact of share based compensation expense on our condensed consolidated statements of income (in thousands):

 

     Three Months Ended
March 31,
 
     2012      2011  

Marketing and selling

   $ 831       $ 667   

Research and development

     441         364   

General and administrative

     651         538   
  

 

 

    

 

 

 

Total share based compensation

   $ 1,923       $ 1,569   
  

 

 

    

 

 

 

As of March 31, 2012, the Company had $16.1 million of unrecognized compensation expense related to employees and directors unvested stock options and restricted stock awards that are expected to be recognized over a weighted average period of 2.5 years.