Note 14 - Share-based Compensation - Other Information Related to Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands |
9 Months Ended | |
|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2025 |
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| Weighted-average grant-date fair value (in dollars per share) | $ 4.06 | $ 1.96 |
| Intrinsic value of options exercised | $ 3,352 | $ 0 |
| Cash received from options exercised | $ 0 | $ 0 |
| Share-Based Payment Arrangement, Option [Member] | ||
| Expected volatility | 57.40% | 52.90% |
| Risk-free interest rate | 3.62% | 3.64% |
| Expected forfeiture rate | 3.20% | 3.30% |
| Expected dividend rate | 0.00% | 0.00% |
| Expected term of options (years) (Year) | 4 years | 4 years |
| X | ||||||||||
- Definition The estimated forfeiture rate over the option's term. No definition available.
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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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| X | ||||||||||
- 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 Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. 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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- Details
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