Note 5 - Stock-based Compensation - Schedule of Valuation Assumptions for ESPP (Details) - The 2025 Employee Stock Purchase Plan [Member] - Valuation Technique, Black-Scholes-Merton Model [Member] |
12 Months Ended |
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Dec. 31, 2025
$ / shares
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| Minimum [Member] | |
| Stock price (in dollars per share) | $ 8 |
| Risk-free interest rate | 3.50% |
| Expected volatility | 69.50% |
| Expected term (Year) | 6 months |
| Maximum [Member] | |
| Stock price (in dollars per share) | $ 12.52 |
| Risk-free interest rate | 4.30% |
| Expected volatility | 105.80% |
| Expected term (Year) | 1 year 6 months |
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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 Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. 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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