Amount of annual base salary as agreed to be paid by the company under the employment agreement.

No definition available.

Name:	nnvc_BaseSalary
Namespace Prefix:	nnvc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of value assigned to term life insurance policy.

+ References

No definition available.

+ Details

Name:	nnvc_TermLifeInsurancePolicyValue
Namespace Prefix:	nnvc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of value assigned to the compnay on term life insurance policy.

+ References

No definition available.

+ Details

Name:	nnvc_TermLifeInsurancePolicyValueAssignedToCompany
Namespace Prefix:	nnvc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_DeferredCompensationArrangementWithIndividualSharesAuthorizedForIssuance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644

+ Details

Name:	us-gaap_PreferredStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_TitleOfIndividualAxis=nnvc_PresidentAndBoardOfDirectorsChairmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesAPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=srt_PresidentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details) - USD ($)		12 Months Ended
Subsequent Events (Details) - USD ($)	Oct. 06, 2022	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2022
President And Board Of Directors, Chairman
Subsequent Event
Base salary for July 1, 2022 to June 30, 2023		$ 400,000	$ 400,000	$ 400,000
Series A Preferred stock \| President And Board Of Directors, Chairman
Subsequent Event
Deferred compensation arrangement with individual, shares authorized for issuance					26,250
Subsequent event \| President And Board Of Directors, Chairman
Subsequent Event
Term life insurance value	$ 2,000,000
Term life insurance value assigned to company	1,000,000
Subsequent event \| President
Subsequent Event
Base salary for July 1, 2022 to June 30, 2023	$ 400,000
Subsequent event \| Series A Preferred stock \| President
Subsequent Event
Deferred compensation arrangement with individual, shares authorized for issuance	10,204
Preferred stock, par value (in dollars per share)	$ 0.001