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Subsequent Events (Details) (Subsequent Event [Member], USD $)
 0 Months Ended 1 Months Ended
May 05, 2015
May 08, 2015
May 05, 2015
Subsequent Event [Line Items]      
Stock issued during period (shares) 10,925,000us-gaap_StockIssuedDuringPeriodSharesNewIssues    
Offering price ($ per share) $ 8.00us-gaap_SharesIssuedPricePerShare   $ 8.00us-gaap_SharesIssuedPricePerShare
Proceeds from initial public offering $ 81,900,000us-gaap_ProceedsFromIssuanceInitialPublicOffering    
Proceeds from exercise of warrants and options   $ 561,000ino_ProceedsfromExerciseofWarrantsandOptions  
Share Distribution [Member]
      
Subsequent Event [Line Items]      
Common stock issued related to warrants and stock options exercise (shares)   143,870ino_StockIssuedDuringPeriodSharesWarrantsandOptionsExercised
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= us-gaap_ShareDistributionMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		  
Over-Allotment Option [Member]      
Subsequent Event [Line Items]      
Stock issued during period (shares) 1,425,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_OverAllotmentOptionMember