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Distribution of Stock-Based Compensation Plan Expense (Tables)
3 Months Ended
Jun. 30, 2013
Distribution Of Stock-Based Compensation Plan Expense Tables  
Schedule Of Stock-Based Compensation Expense By Statement Of Operations Line Item

The following table summarizes the classification of stock-based compensation expense related to employee stock options and employee stock purchases under ASC 718 among the Company's operating functions for the three months ended June 30, 2013 and 2012 which was recorded as follows (in thousands):

      Three Months Ended
      June 30,
      2013     2012
Cost of service revenues   $ 68    $ 43 
Cost of product revenues        
Research and development     154      95 
Sales and marketing     347      316 
General and administrative     338      101 
Total stock-based compensation expense related to             
     employee stock options and employee stock purchases, pre-tax     907      556 
             
Tax benefit        
Stock-based compensation expense related to employee            
     stock options and employee stock purchases, net of tax   $ 907    $ 556