XML 27 R40.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Stock-Based Compensation - Additional Information (Detail) (USD $) | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  | 1 Months Ended | 9 Months Ended |  | 9 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 17, 2013 Participant | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2010 | Sep. 30, 2010 | May 14, 2013 Two Thousand Plan [Member] | Jun. 21, 2013 Two Thousand Plan [Member] | Sep. 30, 2013 Two Thousand Plan [Member] | Sep. 30, 2013 Two Thousand Plan [Member] Employees and Directors [Member] | Sep. 30, 2013 Performance Based Options [Member] | Sep. 30, 2013 Time Based Option [Member] | Sep. 30, 2013 Vicor Corporation Amended and Restated 2000 Stock Option and Incentive Plan, with Performance-Based Vesting Provisions [Member] | Sep. 30, 2013 Vi Chip 2007 Stock Option and Incentive Plan with Performance-Based Vesting Provisions [Member] | Sep. 30, 2013 Tranches One [Member] Performance Based Options [Member] | Sep. 30, 2013 Tranches One [Member] Time Based Option [Member] | Sep. 30, 2013 Tranches Two [Member] Performance Based Options [Member] | Sep. 30, 2013 Tranches Three [Member] Performance Based Options [Member] | Sep. 30, 2013 Tranche Four [Member] Performance Based Options [Member] | Sep. 30, 2013 Tranche Five [Member] Performance Based Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Eligible participants | 638 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options to purchase shares of Common Stock |  |  |  | 1,531,077 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of common stock | 91.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Replacement option vesting period |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Replacement option expiration period |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Time-Based eligible Option exercise price |  |  |  |  |  |  |  |  |  |  |  | $ 6.29 | $ 6.29 |  |  |  |  |  |  |  |
Common stock exercise price percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 120.00% | 120.00% | 140.00% | 160.00% | 180.00% | 200.00%
Common stock sales price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6.29 |  | $ 7.34 | $ 8.38 | $ 9.43 | $ 10.48
Incremental expenses |  |  |  | $ 365,000 |  |  |  |  |  | $ 208,000 | $ 625,000 |  |  |  |  |  |  |  |  |  |
Unrecognized compensation expense |  | 318,000 |  | 318,000 |  |  |  |  |  |  |  | 2,047,000 |  | 414,000 | 777,000 |  |  |  |  |  |
Aggregate expenses |  | 491,000 | 300,000 | 1,893,000 | 970,000 |  |  |  |  |  |  | 2,300,000 |  |  |  |  |  |  |  |  |
Age of employees |  |  |  |  |  |  |  |  |  |  | 62 years 6 months |  |  |  |  |  |  |  |  |  |
Immediate expense recognition |  |  |  |  |  |  |  |  |  | $ 190,000 | $ 450,000 |  |  |  |  |  |  |  |  |  |
Exercise price of options awarded |  |  |  |  |  |  |  | $ 5.35 | $ 5.67 |  |  |  |  |  |  |  |  |  |  |  |
Common stock options awarded |  |  |  |  |  |  |  | 150,000 | 70,552 |  |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options |  |  |  |  |  | 2,984,250 | 1,243,750 |  |  |  |  | 66,000 |  |  |  |  |  |  |  |  |

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 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 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 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 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 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 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 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 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