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Stock Warrants (Details Textual) | 3 Months Ended
--- | ---
Sep. 30, 2017 shares
June 30, 2018 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Warrants Exercisable | 482,861
Warrants Expiration Date | Jun. 30, 2018
June 30, 2019 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Warrants Exercisable | 6,065,247
Warrants Expiration Date | Jun. 30, 2019
June 30 2022 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Warrants Exercisable | 11,432
Warrants Expiration Date | Jun. 30, 2022
June 30, 2020 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Warrants Exercisable | 68,592
Warrants Expiration Date | Jun. 30, 2020
June 30, 2021 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Warrants Exercisable | 57,160
Warrants Expiration Date | Jun. 30, 2021

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- Definition Aggregate amount of warrants are exercisable during the reporting period. + References No definition available. + Details
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Namespace Prefix: | nnvc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Expiration date of warrants held. + References No definition available. + Details
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Namespace Prefix: | nnvc_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Period Type: | duration

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- Details
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- Details
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- Details
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- Details
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- Details
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