XML 68 R57.htm IDEA: XBRL DOCUMENT
v3.19.1

Commitments and Contingencies - Additional Information (Detail) | Mar. 31, 2019 USD ($)
--- | ---
Commitments and Contingencies Disclosure [Abstract] |
Capital expenditure commitments | $ 4,393,000

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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