Note 11 - Equity Incentive Plans and Equity - Restricted Stock Units Award Activity (Details)	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Restricted Stock Units (RSUs) [Member]
Balance (in shares) | shares	278
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 74.52
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | shares	171
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 59.89
Exercised/Vested (in shares) | shares	(64)
Exercised/Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 80.14
Forfeited (in shares) | shares	(13)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 70.53
Balance (in shares) | shares	372
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 66.97
Performance Based Restricted Stock Units [Member]
Balance (in shares) | shares	176
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 63.01
Exercised/Vested (in shares) | shares	(2)
Exercised/Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 111.65
Forfeited (in shares) | shares	(7)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 71.77
Balance (in shares) | shares	167
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 62.11