Note 13 - Share-based Compensation - Restricted Stock Transactions (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Outstanding (in shares) | shares	372,470
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 20.45
Granted (in shares) | shares	155,213
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 11.53
Vested (in shares) | shares	(99,317)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 16.46
Forfeited (in shares) | shares	0
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0
Outstanding (in shares) | shares	428,366
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 18.14