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Net Income (Loss) per Share
 3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Net Income (Loss) per Share

5. Net Income (Loss) per Share

The following table sets forth the computation of basic and diluted income (loss) per share for the three months ended March 31 (in thousands, except per share amounts):

 

     Three Months Ended  
     March 31,  
     2014     2013  

Numerator:

     

Net loss attributable to Vicor Corporation

    $ (5,378 )    $ (4,990 ) 
  

 

 

    

 

 

  

Denominator:

     

Denominator for basic loss per share-weighted

      38,541       41,167  

average shares (1)

     

Effect of dilutive securities:

     

Employee stock options (2)

      —         —    
  

 

 

    

 

 

  

Denominator for diluted loss per share – adjusted weighted-average shares and assumed conversions

      38,541       41,167  
  

 

 

    

 

 

  

Basic loss per share

    $ (0.14 )    $ (0.12 ) 
  

 

 

    

 

 

  

Diluted loss per share

    $ (0.14 )    $ (0.12 ) 
  

 

 

    

 

 

  

 

(1) Denominator represents weighted average number of shares of Common Stock and Class B Common Stock outstanding.
(2) Options to purchase 1,981,028 and 602,841 shares of Common Stock for the three months ended March 31, 2014 and 2013, respectively, were not included in the calculation of net loss per share as the effect would have been antidilutive.