Subsequent Events (Details Textual) (USD $)	12 Months Ended
Dec. 31, 2012
Subsequent Events [Abstract]
Proceeds from business interruption claim	$ 1,100,000

Insurance proceeds from settlement of business interruption.

No definition available.

Name:	nviv_InsuranceProceedsFromSettlementOfBusinessInterruption
Namespace Prefix:	nviv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration