XML 43 R31.htm IDEA: XBRL DOCUMENT
v3.25.2

Equity Transactions (Tables) | 12 Months Ended
--- | ---
Jun. 30, 2025
Equity Transactions |
Schedule of proceeds from sale of stock | ​
​ | ​ | ​ | ​
Gross proceeds |  | $ | 5,499,000
Less: offering costs and expenses | ​ | ​ | 203,000
Net proceeds from issuance of common stock | ​ | $ | 5,296,000
​
​ | ​ | ​ | ​
Gross proceeds |  | $ | 3,237,000
Less: offering costs and expenses | ​ | ​ | 117,000
Net proceeds from issuance of common stock | ​ | $ | 3,120,000
Schedule of estimation the fair value of the warrants granted | ​
​ | ​ | ​ | ​
Expected life (year) |  | 4 | ​
Expected volatility |  | 48.43-54.18 | %
Expected annual rate of quarterly dividends |  | 0.00 | %
Risk-free rate(s) |  | 3.85-4.29 | %
​
​ | ​ | ​ | ​
Expected life (year) |  | 4 | ​
Expected volatility |  | 50.13-55.28 | %
Expected annual rate of quarterly dividends |  | 0.00 | %
Risk-free rate(s) |  | 4.29-4.60 | %

X
- Definition Tabular disclosure of proceeds from the sale of stock. + References No definition available. + Details
Name: | nnvc_ScheduleOfProceedsFromSaleOfStockTableTextBlock
Namespace Prefix: | nnvc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 + Details
Name: | us-gaap_ScheduleOfStockholdersEquityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration