Note 11 - Share Based Compensation and Employee Benefit Plans - Non-vested Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Non-vested balance (in shares)	2,576,614
Non-vested, weighted average grant date fair value (in dollars per share)	$ 9.35
Granted (in shares)	511,900
Weighted-average fair value of stock options granted (in dollars per share)	$ 16.81	$ 14.77	$ 6.36
Vested (in shares)	(663,369)
Vested, weighted average grant date fair value (in dollars per share)	$ 8.96
Forfeited (in shares)	(24,750)
Forfeited, weighted average grant date fair value (in dollars per share)	$ 12.05
Non-vested balance (in shares)	2,400,395	2,576,614
Non-vested, weighted average grant date fair value (in dollars per share)	$ 11.02	$ 9.35