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Document and Entity Information
 3 Months Ended
Mar. 31, 2013
Entity Registrant Name VICOR CORP
Entity Central Index Key 0000751978
Document Type 10-Q
Document Period End Date Mar. 31, 2013
Amendment Flag false
Document Fiscal Year Focus 2013
Document Fiscal Period Focus Q1
Current Fiscal Year End Date --12-31
Entity Filer Category Accelerated Filer
Entity Common Stock, Shares Outstanding 28,112,264
Class B Common Stock
  
Entity Common Stock, Shares Outstanding 11,767,052