Agreed upon price for the exchange of the underlying asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

+ References

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- Definition

This item represents the annual disclosure of the methods and significant assumptions used to estimate the fair value of items for which the fair value option has been elected. This disclosure would not reflect the disclosure of the methodology and assumptions for items otherwise required to be reported at fair value and, therefore, for which the fair value option has not been elected or is not applicable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 31

-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14210-108612

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- Definition

This element represents the fair value of the warrant at issuance date.

+ References

No definition available.

+ Details

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Namespace Prefix:	vivmf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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Note 3 - Fair Value Measurements (Details) - Summary of the Valuation Techniques for Fair Value of Preferred Stock Warrant Liabilities (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Preferred stock warrant liabilities	624,000vivmf_WarrantLiabilitiesNoncurrent	$ 686,000vivmf_WarrantLiabilitiesNoncurrent
Warrant [Member] \| Preferred Stock Warrant Liabilities [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Preferred stock warrant liabilities	Black-Scholes
	Black-Scholes
Warrant [Member] \| Minimum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
	0.04
	(0.04)
	70.60%
	(70.60%)
Warrant [Member] \| Maximum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
	0.44
	(0.44)
	84.20%
	(84.20%)
Warrant [Member] \| Weighted Average [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
	0.06
	(0.06)
	76.00%
	(76.00%)
Warrant [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Preferred stock warrant liabilities	option pricing
	option pricing
Preferred Stock Warrant Liabilities [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Preferred stock warrant liabilities	624,000