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Net Income (Loss) per Share (Tables)
 3 Months Ended
Mar. 31, 2016
Earnings Per Share [Abstract]  
Computation Of Basic And Diluted Net Income (Loss) Per Share

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

 

     Three Months Ended  
     March 31,  
     2016      2015  

Numerator:

      

Net income (loss) attributable to Vicor Corporation

    $ (5,351 )     $ 3,371  
  

 

 

     

 

 

  

Denominator:

      

Denominator for basic net income (loss) per share-weighted average shares (1)

      38,794        38,689  

Effect of dilutive securities:

      

Employee stock options (2)

      —          460  
  

 

 

     

 

 

  

Denominator for diluted net income (loss) per share – adjusted weighted-average shares and assumed conversions

      38,794        39,149  
  

 

 

     

 

 

  

Basic net income (loss) per share

    $ (0.14 )     $ 0.09  
  

 

 

     

 

 

  

Diluted net income (loss) per share

    $ (0.14 )     $ 0.09  
  

 

 

     

 

 

  

 

(1) Denominator represents weighted average number of shares of Common Stock and Class B Common Stock outstanding.
(2) Options to purchase 731,672 and 112,929 shares of Common Stock for the three months ended March 31, 2016 and 2015, respectively, were not included in the calculation of net income per share as the effect would have been antidilutive.