Note 10 - Subsequent Events (Details Textual) - USD ($) |
1 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 02, 2025 |
Jul. 28, 2025 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Proceeds from Warrant Exercises | $ 209 | $ 1,389,363 | ||
| Subsequent Event [Member] | ||||
| Units Issued During Period, Units, New Issues (in shares) | 9,235,000 | |||
| Stock Issued During Period, Shares, New Issues (in shares) | 9,235,000 | |||
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | 18,470,000 | |||
| Shares Issued, Price Per Share (in dollars per share) | $ 0.65 | |||
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 0.65 | |||
| Warrants and Rights Outstanding, Term (Year) | 5 years | |||
| Proceeds from Issuance or Sale of Equity | $ 5,600,000 | |||
| Proceeds from Warrant Exercises | $ 130,000 | |||
| Subsequent Event [Member] | Pre-Funded Warrants [Member] | ||||
| Stock Issued During Period, Shares, Warrants Exercised (in shares) | 200,000 | |||
| X | ||||||||||
- Definition Number of new shares of common stock issued during the period upon exercise of warrants. No definition available.
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| X | ||||||||||
- Definition Number of new shares issued during the period. No definition available.
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| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Per share or per unit amount of equity securities issued. No definition available.
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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