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Note 10 - Share-Based Compensation (Details) - Share-based Payment Award, Stock Options, Valuation Assumptions
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12 Months Ended | ||
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2012
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| Share-based Payment Award, Stock Options, Valuation Assumptions [Abstract] | |||
| Volatility | 56.30% | 56.50% | 45.10% |
| Risk-free rate of return | 1.52% | 0.80% | 1.92% |
| Dividend yield | 1.55% | 1.64% | 2.00% |
| Expected average life (years) | 5 years 73 days | 5 years 292 days | 9 years 219 days |
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- Details
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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/presentationRef
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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://www.xbrl.org/2003/role/presentationRef
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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/presentationRef
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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/presentationRef
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