Note 14 - Stock-based Compensation - Stock Options, Valuation Assumptions (Details) |
12 Months Ended | |
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Oct. 31, 2017 |
Oct. 31, 2016 |
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| Risk-free interest rate | 1.61% | |
| Expected volatility factor | 45.37% | |
| Expected option life (Year) | 6 years 182 days | |
| Minimum [Member] | ||
| Risk-free interest rate | 1.05% | |
| Expected volatility factor | 29.54% | |
| Expected option life (Year) | 4 years | |
| Maximum [Member] | ||
| Risk-free interest rate | 1.62% | |
| Expected volatility factor | 35.27% | |
| Expected option life (Year) | 5 years | |
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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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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- 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://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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- Details
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