Note 13 - Stock-based Compensation - Stock-based Compensation (Details) - The 2006, 2016 and 2021 [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Stock-based Compensation	$ 9,285	$ 9,609	$ 26,975	$ 28,287
Cost of Sales [Member]
Stock-based Compensation	806	667	2,292	1,948
Selling and Marketing Expense [Member]
Stock-based Compensation	2,358	2,847	7,267	8,705
General and Administrative Expense [Member]
Stock-based Compensation	5,264	5,060	14,551	14,825
Research and Development Expense [Member]
Stock-based Compensation	$ 857	$ 1,035	$ 2,865	$ 2,809