Note 18 - Stock-based Compensation - Nonvested Restricted Stock Units (Details) - Restricted Stock Units (RSUs) [Member]	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Nonvested, number of shares (in shares) | shares	1,488,961
Nonvested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 13.07
Granted, number of shares (in shares) | shares	90,734
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 10.58
Vested, number of shares (in shares) | shares	(586,059)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 12.93
Forfeited, number of shares (in shares) | shares	(18,754)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 10.55
Nonvested, number of shares (in shares) | shares	974,882
Nonvested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 12.94