Patents - Additional Information (Detail) (USD $)	3 Months Ended
Mar. 31, 2015
Expected Amortization Expense of Intangible Assets for Each of Next Six Years	$ 1,550,334

Amount of expected amortization expense per year for each of the next seven years.

No definition available.

Name:	invt_AmortizationOfIntangibleAssetsPerYear
Namespace Prefix:	invt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration