Base amount to determine issuance of common stock upon termination.

No definition available.

Name:	ck0001205922_BaseAmountToDetermineIssuanceOfCommonStockUponTermination
Namespace Prefix:	ck0001205922_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

License and services agreement.

+ References

No definition available.

+ Details

Name:	ck0001205922_LicenseAndServicesAgreementLineItems
Namespace Prefix:	ck0001205922_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Research and development milestone payments.

+ References

No definition available.

+ Details

Name:	ck0001205922_ResearchAndDevelopmentMilestonePayments
Namespace Prefix:	ck0001205922_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Services payments received for development activities.

+ References

No definition available.

+ Details

Name:	ck0001205922_ServicesPaymentsReceivedForDevelopmentActivities
Namespace Prefix:	ck0001205922_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Terms of license agreement upon termination.

+ References

No definition available.

+ Details

Name:	ck0001205922_TermsOfLicenseAgreementUponTermination
Namespace Prefix:	ck0001205922_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow associated with the amount received by a corporation from a shareholder during the period.

+ 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 (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

+ Details

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

- Definition

The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

+ Details

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

- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=108788376&loc=SL6759159-111685

+ Details

Name:	us-gaap_VariableInterestEntityOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=ck0001205922_JanuaryTwoThousandSeventeenNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=ck0001205922_VXThreeLicenseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=ck0001205922_ServicesAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

License and Services Agreement - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2018	Nov. 30, 2017	Sep. 30, 2018	Dec. 31, 2017
License And Services Agreement [Line Items]
Proceeds from capital contribution			$ 12,000
January 2017 Notes
License And Services Agreement [Line Items]
Repay an outstanding convertible note	$ 4,000
VX3 License Agreement
License And Services Agreement [Line Items]
Research and development, milestone payments to company		$ 32,000
Terms of license agreement upon termination			the Company will issue to VX3 or its designees the number of shares of the Company’s common stock equal to the lesser of (1) the aggregate of all payments made to VX3 by the Canadian investors divided by $18.20 and (2) the then fair market value of VX3 divided by the then fair market value of one share of the Company’s common stock.
Base amount to determine issuance of common stock upon termination		$ 18.20
Services Agreement
License And Services Agreement [Line Items]
Services payments received				$ 11,900
VX3
License And Services Agreement [Line Items]
Percentage of voting interest			90.00%	96.00%
Proceeds from capital contribution			$ 12,000