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Commitments and Contingencies - Additional Information (Detail) (USD $) | Sep. 30, 2013
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Commitments And Contingencies Disclosure [Abstract] |
Capital expenditure commitments | $ 1,220,000

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- Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Commitment on capital expenditure. + References No definition available. + Details
Name: | vicr_CommitmentOnCapitalExpenditure
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant