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v3.19.3.a.u2

10. STOCK COMPENSATION (Details 1) | 12 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018
Share-based Payment Arrangement [Abstract] |  |
Expected stock price volatility, min | 87.67% | 89.90%
Expected stock price volatility, max | 92.84% | 94.32%
Risk-free interest rate, min | 1.62% | 2.30%
Risk-free interest rate, max | 2.82% | 3.04%
Expected life of options, min | 9 years 8 months 1 day | 9 years 244 days
Expected life of options, max | 9 years 8 months 5 days | 9 years 251 days
Expected dividend yield | 0.00% | 0.00%

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the maximum 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. + References No definition available. + Details
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- Definition The estimated measure of the minimum 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. + References No definition available. + Details
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- Definition The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
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