Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) |
9 Months Ended |
|---|---|
|
May 31, 2018
USD ($)
| |
| Expected life | 5 years |
| Dividend yield | 0.00% |
| Minimum [Member] | |
| Expected volatility | 100.00% |
| Risk-free interest rate | 2.13% |
| Estimated fair value per option | $ 0.61 |
| Maximum [Member] | |
| Expected volatility | 101.00% |
| Risk-free interest rate | 2.68% |
| Estimated fair value per option | $ 1.15 |
| X | ||||||||||
- Definition Estimated fair value per option 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://www.xbrl.org/2003/role/presentationRef
|
| 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/presentationRef
|
| X | ||||||||||
- 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/presentationRef
|
| X | ||||||||||
- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|