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Note 11 - Common Stock and Stock-based Compensation Plans - Summary of Restricted Stock Units Activity (Details) - RSUs and PSUs [Member]
6 Months Ended
Jun. 30, 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 693,378
Granted, weighted average fair value (in dollars per share) | $ / shares $ 18.18
Vested, number (in shares) | shares (286,976)
Vested, weighted average fair value (in dollars per share) | $ / shares $ 32.22
Forfeited or expired, number (in shares) | shares (142,032)
Forfeited or expired, weighted average fair value (in dollars per share) | $ / shares $ 20.58
Unvested, number (in shares) | shares 1,546,121
Unvested, weighted average fair value (in dollars per share) | $ / shares $ 20.97