Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586

+ Details

Name:	us-gaap_DebtConversionConvertedInstrumentAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586

+ Details

Name:	us-gaap_DebtConversionConvertedInstrumentSharesIssued1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

+ Details

Name:	us-gaap_DebtConversionOriginalDebtAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 60
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6402221&loc=d3e15743-112638

+ Details

Name:	us-gaap_GainsLossesOnRestructuringOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermNotesPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Interest paid other than in cash for example by issuing additional debt securities. As a noncash item, it is added to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

+ Details

Name:	us-gaap_PaidInKindInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Name:	us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

+ References

No definition available.

+ Details

Name:	us-gaap_WarrantsAndRightsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

The exercise price of warrants and rights outstanding expressed as a percentage of the conversion rate of stock.

+ References

No definition available.

+ Details

Name:	vive_ClassOfWarrantsAndRightsOutstandingExercisePricePercentageOfConversionRate
Namespace Prefix:	vive_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The conversion rate of stock.

+ References

No definition available.

+ Details

Name:	vive_ConversionOfStockConversionRate
Namespace Prefix:	vive_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The fair value of convertible preferred stock.

+ References

No definition available.

+ Details

Name:	vive_ConvertiblePreferredStockFairValue
Namespace Prefix:	vive_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Additional funding under the credit facility based on covenant agreement.

+ References

No definition available.

+ Details

Name:	vive_DebtAgreementCovenantAdditionalFunding
Namespace Prefix:	vive_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under a debt agreement on the amount that could be borrowed with a combination of, but not limited to, a line of credit and term loan.

+ References

No definition available.

+ Details

Name:	vive_DebtAgreementMaximumBorrowingCapacity
Namespace Prefix:	vive_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The percentage of principal balance of debt instrument for back-end facility fee.

+ References

No definition available.

+ Details

Name:	vive_DebtInstrumentBackendFacilityFeePercentageOfPrincipal
Namespace Prefix:	vive_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period in which interest only payment is made under loan agreement.

+ References

No definition available.

+ Details

Name:	vive_DebtInstrumentInterestOnlyPaymentPeriod
Namespace Prefix:	vive_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents portion of contractual interest rate for funds borrowed that is deferred during the interest-only period.

+ References

No definition available.

+ Details

Name:	vive_DebtInstrumentInterestRateStatedPercentageDeferredDuringInterestOnlyPeriod
Namespace Prefix:	vive_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the prepayment fee percentage pertaining to a debt instrument, expressed as a percentage of the sum of the aggregate principal amount plus the deferred interest added to the principal loan amount during the interest-only period.

+ References

No definition available.

+ Details

Name:	vive_DebtInstrumentPrepaymentFeePercentage
Namespace Prefix:	vive_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The fair value of preferred stock, per share.

+ References

No definition available.

+ Details

Name:	vive_PreferredStockFairValuePerShare
Namespace Prefix:	vive_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesBPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConversionOfStockByUniqueDescriptionAxis=vive_SeriesBConvertiblePreferredStockIntoCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtConversionByUniqueDescriptionAxis=vive_ConversionOfTermLoanWithCrgIntoStockAndWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtConversionByUniqueDescriptionAxis=vive_ConversionOfTermLoanWithCrgIntoSeriesBConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=vive_May2017IssuanceRelatedTo2017LoanAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=vive_WarrantsIssuedUponConversionOfTermLoanWithCrgMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=vive_The2017LoanAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=vive_CRGLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 7 - Note Payable (Details Textual) - USD ($)				12 Months Ended
Note 7 - Note Payable (Details Textual) - USD ($)	Nov. 12, 2019	Dec. 29, 2017	May 22, 2017	Dec. 31, 2020	Dec. 31, 2019	Nov. 26, 2019
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)					2,473,785
Debt Conversion, Converted Instrument, Amount					$ 35,529,000
Notes Payable, Noncurrent, Total				4,518,000	3,983,000
Warrants and Rights Outstanding					3,502,000
Gains (Losses) on Restructuring of Debt					$ (6,705,000)
Series B Preferred Stock [Member]
Conversion of Stock, Conversion Rate (in dollars per share)				$ 15.30
Preferred Stock, Fair Value, Per Share (in dollars per share)						$ 1,023.23
Convertible Preferred Stock, Fair Value						$ 32,027,000
Series B Convertible Preferred Stock Into Common Stock [Member] \| Minimum [Member]
Conversion of Stock, Conversion Rate (in dollars per share)	$ 15.30
Series B Convertible Preferred Stock Into Common Stock [Member] \| Maximum [Member]
Conversion of Stock, Conversion Rate (in dollars per share)	$ 18.36
Conversion of Term Loan with CRG Into Stock and Warrants [Member]
Debt Conversion, Original Debt, Amount	$ 28,981,000
Debt Conversion, Converted Instrument, Amount	$ 31,300,000
Conversion of Term Loan with CRG Into Series B Convertible Preferred Stock [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)	31,300
May 2017 Issuance Related to 2017 Loan Agreement [Member]
Warrants and Rights Outstanding, Term (Year)			10 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)			223		223
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)			$ 9,500		$ 9,500
Warrants and Rights Outstanding			$ 940,000
Warrants Issued Upon Conversion of Term Loan with CRG [Member]
Warrants and Rights Outstanding, Term (Year)	5 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	989,379				741,940
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)					$ 15.50
Class of Warrants and Rights Outstanding, Exercise Price Percentage of Conversion Rate	120.00%
Warrants and Rights Outstanding	$ 3,502,000
The 2017 Loan Agreement [Member]
Notes Payable, Noncurrent, Total				$ 4,518,000
The 2017 Loan Agreement [Member] \| CRG LP [Member]
Debt Instrument, Face Amount			20,000,000
Debt Agreement, Covenant, Additional Funding			10,000,000
Debt Agreement, Maximum Borrowing Capacity			$ 30,000,000
Proceeds from Lines of Credit, Total		$ 10,000,000
Debt Instrument, Term (Year)			6 years
Debt instrument, Interest Only Payment, Period (Year)			4 years
Debt Instrument, Interest Rate, Stated Percentage			12.50%
Debt Instrument, Interest Rate, Stated Percentage Deferred During Interest-only Period			4.00%
Paid-in-Kind Interest				532,000	$ 1,226,000
Debt Instrument, Prepayment Fee, Percentage			5.00%
Debt Instrument, Back-end Facility Fee Percentage of Principal	25.00%		5.00%
Notes Payable, Noncurrent, Total				$ 4,518,000	$ 3,983,000