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Comprehensive Income (Loss)
9 Months Ended
Sep. 30, 2011
Comprehensive Income (Loss)/Dividends [Abstract] 
Comprehensive Income (Loss)
10. Comprehensive Income (Loss)
     The following table sets forth the computation of “Comprehensive income (loss)” for the three and nine months ended September 30, (in thousands):
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2011     2010     2011     2010  
Consolidated net income
  $ 1,175     $ 15,869     $ 8,548     $ 22,621  
Foreign currency translation gains
    141       149       141       317  
Unrealized (losses) gains (net of tax) on available-for-sale securities
    (53 )     477       875       223  
 
                       
Comprehensive income
    1,263       16,495       9,564       23,161  
Less: comprehensive income attributable to noncontrolling interest
    106       65       391       135  
 
                       
Comprehensive income attributable to Vicor Corporation
  $ 1,157     $ 16,430     $ 9,173     $ 23,026