Annual report pursuant to Section 13 and 15(d)

Note 12 - Stock-based Compensation - Vesting Terms of Options Granted (Details)

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Note 12 - Stock-based Compensation - Vesting Terms of Options Granted (Details) - shares
shares in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Stock options granted in the period (in shares) 6,295 4,659
Options with Cliff Vesting After One Year Anniversary [Member]    
Stock options granted in the period (in shares) 0 0
Options with Three Year Vesting [Member]    
Stock options granted in the period (in shares) 425 430
Options with Four Year Vesting [Member]    
Stock options granted in the period (in shares) 5,270 3,429
Options With Performance Criteria [Member]    
Stock options granted in the period (in shares) 600 800