Note 14 - Earnings (Loss) Per Share - Computation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
EARNINGS (LOSS) PER SHARE
Net income (loss)	$ 116,042	$ 39,759	$ (4,907)
Weighted average shares used to compute basic EPS (in shares)	44,164,000	43,964,000	42,460,000
Weighted average shares used to compute diluted EPS (in shares)	44,702,000	44,257,000	42,460,000
Basic (in dollars per share)	$ 2.63	$ 0.90	$ (0.12)
Diluted (in dollars per share)	$ 2.60	$ 0.90	$ (0.12)
Antidilutive shares			937,424
Options
EARNINGS (LOSS) PER SHARE
Dilutive effect of stock-based awards (in shares)	532,000	293,000
Restricted Stock Units
EARNINGS (LOSS) PER SHARE
Dilutive effect of stock-based awards (in shares)	6,000
Performance Stock Units
EARNINGS (LOSS) PER SHARE
Antidilutive shares	248,706