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Net Loss Per Share (Tables)
6 Months Ended
Jun. 30, 2016
Net Loss Per Share Tables  
Net Loss Per Share (Tables)

The components of basic and diluted net loss per share were as follows (in thousands, except loss per share data):

      Three Months Ended     Six Months Ended  
      June 30,     June 30,  
      2016     2015     2016     2015
Numerator:                        
Net loss available for common shareholders - basic and diluted   $ (3,476)   $ (2,769)   $ (7,032)   $ (6,731)
                         
Denominator:                        
Weighted-average common shares outstanding - basic and diluted       51,567      46,663      49,566      45,818 
                         
Net loss per share - basic and diluted     $ (0.07)   $ (0.06)   $ (0.14)   $ (0.15)