Stock-based Compensation - Stock option granted (Details) - $ / shares |
6 Months Ended | |
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Jun. 30, 2026 |
Jun. 30, 2025 |
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| Stock-based Compensation | ||
| Exercise price | $ 0.25 | $ 0.29 |
| Expected term (years) | 2 years 7 months 6 days | 3 years 2 months 12 days |
| Expected stock price volatility | 83.00% | 77.00% |
| Risk-free rate | 3.50% | 3.80% |
| Dividend yield (per share) | 0.00% | 0.00% |
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- References No definition available.
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- Definition Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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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