Note 14 - Share-based Compensation - Stock Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Stock compensation expense	$ 5,973	$ 2,520	$ 11,372	$ 4,024
Research and Development Expense [Member]
Stock compensation expense	714	437	1,391	620
Selling and Marketing Expense [Member]
Stock compensation expense	738	269	1,443	453
General and Administrative Expense [Member]
Stock compensation expense	3,719	1,667	6,729	2,646
Cost of Sales [Member]
Stock compensation expense	$ 802	$ 147	$ 1,809	$ 305