Note 11 - Stock-based Compensation - Vesting Terms of Options Granted (Details) - shares shares in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
|
| Stock options granted in the period (in shares) | 3,220 | 3,870 |
| Options with Three Year Vesting [Member] | ||
| Stock options granted in the period (in shares) | 725 | 425 |
| Options with Four Year Vesting [Member] | ||
| Stock options granted in the period (in shares) | 2,495 | 3,445 |
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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