Note 5 - Stock-Based Compensation - Schedule of Unvested Restricted Stock Activity (Details) - Restricted Stock [Member] shares in Thousands	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Balance (in shares) | shares	105
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 29.89
Granted (in shares) | shares	6
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 35.82
Vested (in shares) | shares	(14)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 33.56
Forfeited (in shares) | shares	(1)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 28.06
Balance (in shares) | shares	96
Balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 29.76