Total number of additional common shares of an entity that have been sold or granted to shareholders.

No definition available.

Name:	nnvc_AdditionalCommonStockSharesIssued
Namespace Prefix:	nnvc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Total number of additional nonredeemable preferred shares issued to shareholders.

+ References

No definition available.

+ Details

Name:	nnvc_AdditionalPreferredStockSharesIssued
Namespace Prefix:	nnvc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

The line item information about commitment and contingencies.

+ References

No definition available.

+ Details

Name:	nnvc_CommitmentsAndContingenciesLineItems
Namespace Prefix:	nnvc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the employment agreement was made.

+ References

No definition available.

+ Details

Name:	nnvc_EmploymentAgreementTerm
Namespace Prefix:	nnvc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the certain amount of estimated salary increase in their base.

+ References

No definition available.

+ Details

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

- Definition

Estimated period of extension term of employee agreement for share based compensation arrangement by share based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	nnvc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEmployeeAgreementTermOfExtension
Namespace Prefix:	nnvc_
Data Type:	xbrli:durationItemType
Balance Type:	na
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 company 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

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

+ Details

Name:	us-gaap_CommonStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
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
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ 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
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

+ Details

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

- Definition

Number of shares issued for nonredeemable preferred shares and preferred shares redeemable solely at option of issuer. Includes, but is not limited to, preferred shares issued, repurchased, and held as treasury shares. Excludes preferred shares classified as debt.

+ References

+ Details

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

- Details

Name:	srt_CounterpartyNameAxis=nnvc_FounderChairmanAndPresidentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
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:	srt_TitleOfIndividualAxis=srt_VicePresidentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Commitments and Contingencies - Employment Agreements (Details) - USD ($)					12 Months Ended
	Jul. 01, 2025	Oct. 06, 2023	Jan. 01, 2015	Mar. 03, 2010	Jun. 30, 2025	Jun. 30, 2024
Commitments and Contingencies
Common stock, shares issued					16,606,832	13,144,055
Founder, Chairman and President
Commitments and Contingencies
Employment agreement extension term (in years)		1 year			1 year
Founder, Chairman and President \| Related party
Commitments and Contingencies
Base salary	$ 400,000
Term life insurance value	2,000,000
Term life insurance value assigned to company	$ 1,000,000
Preferred stock, par value (in dollars per share)	$ 0.00001
Founder, Chairman and President \| Series A Preferred stock \| Related party
Commitments and Contingencies
Number of shares granted	10,204
Vice President
Commitments and Contingencies
Base salary				$ 150,000
Employment agreement term				4 years
Common stock, shares issued				1,786
Additional common stock shares issued				1,786
Vice President \| Series A Preferred stock
Commitments and Contingencies
Additional preferred stock shares issued				1,340
Preferred Stock, Shares Issued				1,340
Chief Financial Officer
Commitments and Contingencies
Employment agreement term	3 years
Increase In base salary	$ 9,000		$ 10,800
Employment agreement extension term (in years)	1 year
Chief Financial Officer \| Series A Preferred stock
Commitments and Contingencies
Preferred Stock, Shares Issued	129