XML 38 R32.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Long-Term Investments - Summary of Available-for-Sale Securities (Detail) (USD $) | Sep. 30, 2013 | Dec. 31, 2012
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Cost | $ 7,241,000 | $ 7,845,000
Gross Unrealized Gains | 8,000 | 12,000
Gross Unrealized Losses | 1,018,000 | 1,121,000
Estimated Fair Value | 6,231,000 | 6,736,000
Failed Auction Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost | 6,000,000 | 6,100,000
Gross Unrealized Gains |  |
Gross Unrealized Losses | 1,018,000 | 1,121,000
Estimated Fair Value | 4,982,000 | 4,979,000
Brokered Certificates of Deposit [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost | 1,010,000 | 1,280,000
Gross Unrealized Gains | 8,000 | 12,000
Gross Unrealized Losses |  |
Estimated Fair Value | 1,018,000 | 1,292,000
Certificate of Deposit [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost | 231,000 | 465,000
Gross Unrealized Gains |  |
Gross Unrealized Losses |  |
Estimated Fair Value | $ 231,000 | $ 465,000

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + 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 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AvailableForSaleSecuritiesAmortizedCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Available For Sale Securities Gross Unrealized Gains Accumulated In Investments + References No definition available. + Details
Name: | vicr_AvailableForSaleSecuritiesGrossUnrealizedGainsAccumulatedInInvestments
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments. + References No definition available. + Details
Name: | vicr_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments
Namespace Prefix: | vicr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant