Note 15 - Share-based Compensation - Stock Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock compensation expense	$ 25,334	$ 13,956	$ 5,981
Research and Development Expense [Member]
Stock compensation expense	3,176	1,906	1,012
Selling and Marketing Expense [Member]
Stock compensation expense	3,649	1,788	852
General and Administrative Expense [Member]
Stock compensation expense	14,066	8,061	3,518
Cost of Sales [Member]
Stock compensation expense	$ 4,443	$ 2,201	$ 599