Note 13 - Share-based Compensation - Performance Share Transactions (Details) - Performance Shares [Member]	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Outstanding (in shares) | shares	199,451
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 20.57
Granted (in shares) | shares	94,028
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 12.56
Vested (in shares) | shares	(4,558)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 20.54
Forfeited (in shares) | shares	(5,400)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 9.48
Outstanding (in shares) | shares	283,521
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 18.13