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Note 11 - Common Stock and Stock-based Compensation Plans - Summary of Restricted Stock Units Activity (Details) - RSUs and PSUs [Member]
3 Months Ended
Mar. 31, 2024
$ / shares
shares
Unvested, number (in shares) | shares 1,281,751
Unvested, weighted average fair value (in dollars per share) | $ / shares $ 24.97
Granted, number (in shares) | shares 414,572
Granted, weighted average fair value (in dollars per share) | $ / shares $ 17.21
Vested, number (in shares) | shares (112,076)
Vested, weighted average fair value (in dollars per share) | $ / shares $ 36.71
Forfeited or expired, number (in shares) | shares (110,218)
Forfeited or expired, weighted average fair value (in dollars per share) | $ / shares $ 19.07
Unvested, number (in shares) | shares 1,474,029
Unvested, weighted average fair value (in dollars per share) | $ / shares $ 22.34