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Fair Value Measurement (Details 1) (USD $)
9 Months Ended
Mar. 31, 2015
Warrant [Member]  
Begining Balance $ 5,235,682us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Additions during the year 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Change in fair value (624,210)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Transfer in and/or out of Level 3 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Ending Balance 4,611,472us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Derivative liability - Series C debentures [Member]  
Begining Balance 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesCDebenturesMember
Additions during the year 1,879,428us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesCDebenturesMember
Change in fair value (1,070,123)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesCDebenturesMember
Transfer in and/or out of Level 3 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesCDebenturesMember
Ending Balance 809,305us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesCDebenturesMember
Derivative liability - Series B debentures One [Member]  
Begining Balance 5,699,703us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesBDebenturesOneMember
Additions during the year 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesBDebenturesOneMember
Change in fair value (4,768,763)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesBDebenturesOneMember
Transfer in and/or out of Level 3 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesBDebenturesOneMember
Ending Balance $ 930,940us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ nnvc_DebtInstrumentClassTypeAxis
= nnvc_DerivativeLiabilitySeriesBDebenturesOneMember