XML 60 R45.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Stock-Based Compensation and Employee Benefit Plans - Additional Information (Detail) (USD $) | 0 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 17, 2013 Participant | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Jun. 21, 2013 | May 14, 2013 | Dec. 31, 2014 | Jun. 30, 2013 | Nov. 11, 2011 | Sep. 30, 2010 | Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Term of Option |  | 10 years |  |  |  |  |  |  |  |  |
Eligible participants | 638 vicr_NumberOfEligibleParticipantsAcceptedOptionExchangeOffer |  |  |  |  |  |  |  |  |  |
Options to purchase shares of Common Stock |  | 1,531,077 vicr_NumberOfSharesExchangedUnderShareExchangeAgreement |  |  |  |  |  |  |  |  |
Percentage of common stock | 91.00%vicr_NumberOfSharesExchangedUnderShareExchangeAgreementPercentage |  |  |  |  |  |  |  |  |  |
Replacement option vesting period |  | 5 years |  |  |  |  |  |  |  |  |
Replacement option expiration period |  | 10 years |  |  |  |  |  |  |  |  |
Incremental expenses |  | $ 365,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost |  |  |  |  |  |  |  |  |
Total unrecognized compensation cost |  | 318,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions |  |  |  |  | 318,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions |  |  |  |
Stock-based compensation expense |  | 1,634,000 us-gaap_AllocatedShareBasedCompensationExpense | 2,450,000 us-gaap_AllocatedShareBasedCompensationExpense | 1,244,000 us-gaap_AllocatedShareBasedCompensationExpense |  |  |  |  |  |  |
Employee's compensation plan |  | The Company matches employee contributions to the plan at a rate of 50% up to the first 3% of an employee's compensation |  |  |  |  |  |  |  |  |
Employee contributions |  | 20.00%us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage |  |  |  |  |  |  |  |  |
Company contribution to the plan |  | 877,000 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount | 825,000 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount | 813,000 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount |  |  |  |  |  |  |
Performance Based Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options |  | 58,250 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember |  |  |  |  | 58,250 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember |  |  |  |
Time-Based eligible Option exercise price |  | $ 6.29 vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePrice / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember |  |  |  |  | $ 6.29 vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePrice / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember |  |  |  |
Total unrecognized compensation cost |  | 940,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember |  |  |  |  | 940,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember |  |  |  |
Stock-based compensation expense |  | 2,300,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember |  |  |  |  |  |  |  |  |
Time Based Option [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Time-Based eligible Option exercise price |  | $ 6.29 vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePrice / us-gaap_AwardTypeAxis = vicr_TimeBasedOptionMember |  |  |  |  | $ 6.29 vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePrice / us-gaap_AwardTypeAxis = vicr_TimeBasedOptionMember |  |  |  |
Tranche One [Member] | Performance Based Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options granted to non-employees |  | 120.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheOneMember |  |  |  |  |  |  |  |  |
Common stock sales price |  | $ 6.29 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheOneMember |  |  |  |  |  |  |  |  |
Tranche One [Member] | Time Based Option [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options granted to non-employees |  | 120.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_AwardTypeAxis = vicr_TimeBasedOptionMember / us-gaap_VestingAxis = vicr_TrancheOneMember |  |  |  |  |  |  |  |  |
Tranche Two [Member] | Performance Based Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options granted to non-employees |  | 140.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheTwoMember |  |  |  |  |  |  |  |  |
Common stock sales price |  | $ 7.34 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheTwoMember |  |  |  |  |  |  |  |  |
Tranche Three [Member] | Performance Based Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options granted to non-employees |  | 160.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheThreeMember |  |  |  |  |  |  |  |  |
Common stock sales price |  | $ 8.38 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheThreeMember |  |  |  |  |  |  |  |  |
Tranche Four [Member] | Performance Based Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options granted to non-employees |  | 180.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheFourMember |  |  |  |  |  |  |  |  |
Common stock sales price |  | $ 9.43 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheFourMember |  |  |  |  |  |  |  |  |
Tranche Five [Member] | Performance Based Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options granted to non-employees |  | 200.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheFiveMember |  |  |  |  |  |  |  |  |
Common stock sales price |  | $ 10.48 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = vicr_PerformanceBasedOptionsMember / us-gaap_VestingAxis = vicr_TrancheFiveMember |  |  |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Employees pre-tax salary |  | 1.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Employees pre-tax salary |  | 80.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |  |  |
Two Thousand Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock reserved for issuance |  | 4,000,000 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |  |  | 4,000,000 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |  |
Non-qualified stock options |  |  |  |  |  |  |  |  |  | 1,243,750 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |
Common stock options awarded |  |  |  |  | 70,552 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember | 150,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember | 150,355 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |  |
Incremental expenses |  |  |  |  |  |  |  | 208,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |
Total unrecognized compensation cost |  | 365,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |  |  | 365,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |  |
Immediate expense recognition |  |  |  |  |  |  |  | 190,000 vicr_EmployeeServiceShareBasedCompensationAwardsCompensationCostsSubjectToImmediateRecognitionDueToAgeOfRecipient / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |
Exercise price of options awarded |  |  |  |  | $ 5.67 vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember | $ 5.35 vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |  |  |
Stock options, cancelled in period |  |  |  |  |  |  | 129,028 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember |  |  |  |
Two Thousand Plan [Member] | Employees and Directors [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incremental expenses |  |  |  |  |  |  |  | 625,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember / us-gaap_TitleOfIndividualAxis = vicr_EmployeesAndDirectorsMember |  |  |
Age of employees |  | 62 years 6 months |  |  |  |  |  |  |  |  |
Immediate expense recognition |  |  |  |  |  |  |  | 450,000 vicr_EmployeeServiceShareBasedCompensationAwardsCompensationCostsSubjectToImmediateRecognitionDueToAgeOfRecipient / us-gaap_PlanNameAxis = vicr_TwoThousandPlanMember / us-gaap_TitleOfIndividualAxis = vicr_EmployeesAndDirectorsMember |  |  |
Vicor Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options granted to non-employees |  | 85.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |  |  |
Non-qualified stock options |  | 1,895,675 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 1,989,248 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  | 1,895,675 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Common stock options awarded |  | 343,650 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |  |  |
Common stock sales price |  | $ 9.24 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |  |  |
Total unrecognized compensation cost |  | 1,369,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  | 1,369,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Stock options, cancelled in period |  | 310,182 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |  |  |
Vicor options actually vest |  | 78.00%vicr_VicorOptionsActuallyVest / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |  |  |
Annual forfeiture rate |  | 8.00%vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 8.00%vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |  |
Vicor options actually vest forfeiture |  |  | 78.00%vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentage / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |  |
Share exercisable |  | 306,173 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 54,284 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 255,694 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  | 306,173 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Weighted average exercise prices |  | $ 6.90 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_VicorPlanMember | $ 9.72 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_VicorPlanMember | $ 12.79 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  | $ 6.90 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Total Intrinsic value |  | 751,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 15,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 2,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |
Options Exercised |  | 788,000 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 13,000 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 4,000 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |
Fair value of stock options that vested |  | 1,096,000 us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 489,000 us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_PlanNameAxis = vicr_VicorPlanMember | 449,000 us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |
Compensation cost recognized over a weighted-average period |  | 2 years 1 month 28 days |  |  |  |  |  |  |  |  |
Expected recognized expenses, Year One |  | 705,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearOne / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  | 705,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearOne / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Expected recognized expenses, Year Two |  | 399,000 vicr_EmployeeServiceShareBasedCompensationNonVestedAwardsExpectedCompensationCostRecognizedStockOptionsYearTwo / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  | 399,000 vicr_EmployeeServiceShareBasedCompensationNonVestedAwardsExpectedCompensationCostRecognizedStockOptionsYearTwo / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Expected recognized expenses, Year Three |  | 195,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearThree / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  | 195,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearThree / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Expected recognized expenses, Year Four |  | 62,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFour / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  | 62,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFour / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Expected recognized expenses, Year Five |  | 8,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFive / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  | 8,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFive / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |
Weighted-average fair value |  | $ 5.50 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_VicorPlanMember | $ 1.90 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_VicorPlanMember | $ 2.47 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_VicorPlanMember |  |  |  |  |  |  |
2001 Picor Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock reserved for issuance |  | 20,000,000 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_PlanNameAxis = vicr_TwoThousandOnePicorPlanMember |  |  |  |  | 20,000,000 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_PlanNameAxis = vicr_TwoThousandOnePicorPlanMember |  |  |  |
Non-qualified stock options |  | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_TwoThousandOnePicorPlanMember |  |  |  |  | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_TwoThousandOnePicorPlanMember |  |  |  |
Common stock options awarded |  |  |  |  |  |  |  |  | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = vicr_TwoThousandOnePicorPlanMember |  |
2007 VI Chip Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock reserved for issuance |  | 12,000,000 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_PlanNameAxis = vicr_TwoThousandSevenViChipPlanMember |  |  |  |  | 12,000,000 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_PlanNameAxis = vicr_TwoThousandSevenViChipPlanMember |  |  |  |
Non-qualified stock options |  | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_TwoThousandSevenViChipPlanMember |  |  |  |  | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_TwoThousandSevenViChipPlanMember |  |  |  | 2,984,250 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_TwoThousandSevenViChipPlanMember
Common stock options awarded |  |  |  |  |  |  |  |  | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = vicr_TwoThousandSevenViChipPlanMember |  |
Total unrecognized compensation cost |  | 621,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_TwoThousandSevenViChipPlanMember |  |  |  |  | 621,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_TwoThousandSevenViChipPlanMember |  |  |  |
Picor Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options |  | 9,870,067 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 9,404,367 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  | 9,870,067 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Common stock options awarded |  | 1,150,400 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |  |  |
Common stock sales price |  | $ 0.41 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |  |  |
Total unrecognized compensation cost |  | 631,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  | 631,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Stock options, cancelled in period |  | 684,700 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |  |  |
Maturity period of US Treasury Bond |  | 7 years |  |  |  |  |  |  |  |  |
Annual forfeiture rate |  | 2.75%vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 2.75%vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |  |
Picor options actually vest forfeiture |  | 92.00%vicr_PicorOptionsActuallyVestForfeiture / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |  |  |
Picor options actually vest |  |  | 92.00%vicr_PicorOptionsActuallyVest / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |  |
Share exercisable |  | 6,643,377 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 5,869,044 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 5,329,950 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  | 6,643,377 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Weighted average exercise prices |  | $ 0.67 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_PicorPlanMember | $ 0.69 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_PicorPlanMember | $ 0.69 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  | $ 0.67 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Total Intrinsic value |  | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 146,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 279,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |
Options Exercised |  |  | 14,000 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 172,000 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |
Fair value of stock options that vested |  | 0 us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 398,000 us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_PlanNameAxis = vicr_PicorPlanMember | 61,000 us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |
Compensation cost recognized over a weighted-average period |  | 2 years 8 months 12 days |  |  |  |  |  |  |  |  |
Expected recognized expenses, Year One |  | 358,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearOne / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  | 358,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearOne / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Expected recognized expenses, Year Two |  | 140,000 vicr_EmployeeServiceShareBasedCompensationNonVestedAwardsExpectedCompensationCostRecognizedStockOptionsYearTwo / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  | 140,000 vicr_EmployeeServiceShareBasedCompensationNonVestedAwardsExpectedCompensationCostRecognizedStockOptionsYearTwo / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Expected recognized expenses, Year Three |  | 78,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearThree / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  | 78,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearThree / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Expected recognized expenses, Year Four |  | 43,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFour / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  | 43,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFour / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Expected recognized expenses, Year Five |  | 12,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFive / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  | 12,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFive / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |
Weighted-average fair value |  | $ 0.19 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_PicorPlanMember | $ 0.31 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_PicorPlanMember | $ 0.32 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_PicorPlanMember |  |  |  |  |  |  |
Vi Chip Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options |  | 10,715,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | 10,744,250 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  | 10,715,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Common stock options awarded |  | 117,500 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  |  |  |  |  |
Common stock sales price |  | $ 1.00 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  |  |  |  |  |
Total unrecognized compensation cost |  | 820,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  | 820,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Stock options, cancelled in period |  | 146,750 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  |  |  |  |  |
Maturity period of US Treasury Bond |  | 7 years |  |  |  |  |  |  |  |  |
Annual forfeiture rate |  | 7.75%vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | 7.00%vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  |  |  |  |
Chip options actually vest |  |  | 80.00%vicr_ChipOptionsActuallyVest / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  |  |  |  |
Chip options actually vest forfeiture |  | 77.00%vicr_ChipOptionsActuallyVestForfeiture / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  |  |  |  |  |
Share exercisable |  | 7,377,950 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | 7,267,600 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | 7,304,100 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  | 7,377,950 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Weighted average exercise prices |  | $ 1.00 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | $ 1.00 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | $ 1.00 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  | $ 1.00 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Options Exercised |  | 0 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | 0 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | 6,000 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  |  |  |
Compensation cost recognized over a weighted-average period |  | 1 year 4 months 24 days |  |  |  |  |  |  |  |  |
Expected recognized expenses, Year One |  | 233,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearOne / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  | 233,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearOne / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Expected recognized expenses, Year Two |  | 192,000 vicr_EmployeeServiceShareBasedCompensationNonVestedAwardsExpectedCompensationCostRecognizedStockOptionsYearTwo / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  | 192,000 vicr_EmployeeServiceShareBasedCompensationNonVestedAwardsExpectedCompensationCostRecognizedStockOptionsYearTwo / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Expected recognized expenses, Year Three |  | 177,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearThree / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  | 177,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearThree / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Expected recognized expenses, Year Four |  | 149,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFour / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  | 149,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFour / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Expected recognized expenses, Year Five |  | $ 69,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFive / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  | $ 69,000 vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFive / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |
Weighted-average fair value |  | $ 0.02 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | $ 0.29 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_ViChipPlanMember | $ 0.46 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = vicr_ViChipPlanMember |  |  |  |  |  |  |
Stock Bonus Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock purchase by non-employees |  | 109,964 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = vicr_StockBonusPlanMember |  |  |  |  | 109,964 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = vicr_StockBonusPlanMember |  |  |  |

X
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employer's matching contributions to a defined contribution plan that vests in a given year. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of the terms and benefits provided by the employer's defined contribution plans. A defined contribution plan provides benefits in return for services rendered, provides an individual account for each participant, and has terms that specify how contributions to the individual's account are to be determined rather than the amount of benefits the individual is to receive. Under a defined contribution pension plan, the benefits a participant will receive depend solely on the amount contributed to the participant's account, the returns earned on investments of those contributions, and forfeitures of other participants' benefits that may be allocated to such participant's account. A description of the plan(s) including employee groups covered, the basis for determining contributions, and the nature and effects of significant matters affecting comparability of information for all periods presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Defined Contribution Postretirement Plan -URI http://asc.fasb.org/extlink&oid=6510416 + Details
Name: | us-gaap_DescriptionOfDefinedContributionPensionAndOtherPostretirementPlans
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unrecognized cost of unvested options awarded to employees as compensation. + References No definition available. + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromStockOptionsExercised
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition An excess of the fair value of the modified award over the fair value of the award immediately before the modification. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Purchase price of common stock expressed as a percentage of its fair value. + References No definition available. + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Age of employees or directors. + References No definition available. + Details
Name: | vicr_AgeOfEmployeesOrDirectors
Namespace Prefix: | vicr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Chip options actually vest. + References No definition available. + Details
Name: | vicr_ChipOptionsActuallyVest
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Chip options actually vest forfeiture. + References No definition available. + Details
Name: | vicr_ChipOptionsActuallyVestForfeiture
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Employee service share based compensation awards compensation costs subject to immediate recognition due to age of recipient. + References No definition available. + Details
Name: | vicr_EmployeeServiceShareBasedCompensationAwardsCompensationCostsSubjectToImmediateRecognitionDueToAgeOfRecipient
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Employee service share based compensation nonvested awards expected compensation cost recognized stock options year five. + References No definition available. + Details
Name: | vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFive
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Employee service share based compensation nonvested awards expected compensation cost recognized stock options year four. + References No definition available. + Details
Name: | vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearFour
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Employee service share based compensation nonvested awards expected compensation cost recognized stock options year one. + References No definition available. + Details
Name: | vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearOne
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Employee service share based compensation nonvested awards expected compensation cost recognized stock options year three. + References No definition available. + Details
Name: | vicr_EmployeeServiceShareBasedCompensationNonvestedAwardsExpectedCompensationCostRecognizedStockOptionsYearThree
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Employee service share based compensation non vested awards expected compensation cost recognized stock options year two. + References No definition available. + Details
Name: | vicr_EmployeeServiceShareBasedCompensationNonVestedAwardsExpectedCompensationCostRecognizedStockOptionsYearTwo
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Maturity period of treasury bond. + References No definition available. + Details
Name: | vicr_MaturityPeriodOfTreasuryBond
Namespace Prefix: | vicr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of eligible participants accepted option exchange offer. + References No definition available. + Details
Name: | vicr_NumberOfEligibleParticipantsAcceptedOptionExchangeOffer
Namespace Prefix: | vicr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares exchanged under share exchange agreement. + References No definition available. + Details
Name: | vicr_NumberOfSharesExchangedUnderShareExchangeAgreement
Namespace Prefix: | vicr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares exchanged under share exchange agreement percentage. + References No definition available. + Details
Name: | vicr_NumberOfSharesExchangedUnderShareExchangeAgreementPercentage
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Picor options actually vest. + References No definition available. + Details
Name: | vicr_PicorOptionsActuallyVest
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Picor options actually vest forfeiture. + References No definition available. + Details
Name: | vicr_PicorOptionsActuallyVestForfeiture
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award award vesting percentage. + References No definition available. + Details
Name: | vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentage
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award forfeiture rate. + References No definition available. + Details
Name: | vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureRate
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award options exercise price. + References No definition available. + Details
Name: | vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePrice
Namespace Prefix: | vicr_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share based compensation arrangement by share based payment award options grants in period exercise price. + References No definition available. + Details
Name: | vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePrice
Namespace Prefix: | vicr_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award term of award. + References No definition available. + Details
Name: | vicr_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermOfAward
Namespace Prefix: | vicr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Vicor options actually vest. + References No definition available. + Details
Name: | vicr_VicorOptionsActuallyVest
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=vicr_PerformanceBasedOptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=vicr_TimeBasedOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=vicr_PicorPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=vicr_StockBonusPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=vicr_TwoThousandOnePicorPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=vicr_TwoThousandPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=vicr_TwoThousandSevenViChipPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=vicr_ViChipPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=vicr_VicorPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=vicr_TrancheFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=vicr_TrancheFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=vicr_TrancheOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=vicr_TrancheThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=vicr_TrancheTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |