Note 17 - Share-based Compensation - Performance Unit Awards, Valuation Assumptions (Details) - Performance Shares [Member] |
12 Months Ended | ||
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Jun. 30, 2022 |
Jun. 30, 2021 |
Jun. 30, 2020 |
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| Volatility | 43.30% | 56.00% | 30.50% |
| Risk-free rate of return | 0.62% | 0.14% | 1.72% |
| Dividend yield | 3.79% | 3.26% | 3.97% |
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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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- 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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- Details
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