Note 2 - Liquidity and Summary of Significant Accounting Policies - Schedule of Option Assumptions (Details) - Share-Based Payment Arrangement, Option [Member] |
9 Months Ended | |
|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Weighted average expected years until exercise (Year) | 5 years 6 months | 5 years 6 months |
| Expected stock volatility | 75.00% | 75.00% |
| Dividend yield | 0.00% | 0.00% |
| Minimum [Member] | ||
| Risk free rate | 4.17% | 3.86% |
| Maximum [Member] | ||
| Risk free rate | 4.19% | 4.06% |
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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