Note 12 - Stock-based Compensation and Other Benefit Plans (Tables) |
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| Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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