Stockholders' Equity - Fair Value of Options Granted (Detail) - Service-Based Vesting Condition Options [Member] |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
May 31, 2021 |
May 31, 2021 |
May 31, 2020 |
|
| Weighted average values: | |||
| Expected dividends | 0.00% | 0.00% | 0.00% |
| Expected volatility | 49.85% | 49.85% | 64.25% |
| Risk free interest rate | 1.35% | 1.35% | 1.90% |
| Expected life | 6 years | 6 years | 9 years |
| X | ||||||||||
- Definition Fair Value Of Options Weighted Average Values. No definition available.
|
| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
|
| 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://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|