Stock Options (Details 2) - $ / shares |
12 Months Ended | |
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Aug. 31, 2022 |
Aug. 31, 2021 |
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| Stock Options | ||
| Expected volatility Minimum | 98.00% | 133.00% |
| Expected volatility Maximum | 119.00% | 134.00% |
| Risk-free interest rate Minimum | 0.78% | 0.42% |
| Risk-free interest rate Maximum | 3.30% | 0.85% |
| Expected life | 5 years | 5 years |
| Dividend yield | 0.00% | 0.00% |
| Estimated fair value per option Minimum | $ 2.25 | $ 4.00 |
| Estimated fair value per option Maximum | $ 5.10 | $ 4.86 |
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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. No definition available.
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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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