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Note 7 - Share-based Compensation - Stock-settled Stock Appreciation Rights Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021
Lapsed or cancelled (in shares) | (7,572) |
Lapsed or cancelled, weighted average exercise price (in dollars per share) | $ 17.89 |
Stock Appreciation Rights (SARs) [Member] |  |
Outstanding SARS (in shares) | 291,059 |
Outstanding (in dollars per share) | $ 14.99 |
Outstanding SARS, weighted average remaining life (Year) | 2 years 7 months 17 days | 2 years 7 months 24 days
Outstanding SARS, aggregate intrinsic value | $ 1,208 | $ 2,205
Granted SARs (in shares) | 37,297 |
Granted SARS, weighted average exercise price (in dollars per share) | $ 20.13 |
Exercised SARs (in shares) | (24,836) |
Exercised SARS, weighted average exercise price (in dollars per share) | $ 15.16 |
Lapsed or cancelled (in shares) | (2,308) |
Lapsed or cancelled, weighted average exercise price (in dollars per share) | $ 16.97 |
Outstanding SARS (in shares) | 301,212 | 291,059
Outstanding SARS, weighted average exercise price (in dollars per share) | $ 15.60 | $ 14.99
Exercisable (in shares) | 232,228 |
Exercisable, weighted average exercise price (in dollars per share) | $ 13.48 |
Exercisable, weighted average remaining life (Year) | 2 years 2 months 4 days |
Exercisable, aggregate intrinsic value | $ 1,208 |

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- Definition The weighted average grant-date fair value of SARS exercised during the reporting period as calculated by applying the disclosed option pricing methodology. + References No definition available. + Details
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- Definition The weighted average exercise price of non-option equity instruments granted during the period. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for vested portions of non-options equity instruments outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for non-option equity awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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