Note 13 - Stock-based Compensation - Stock-based Compensation (Details) - The 2006, 2016 and 2021 [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Stock-based Compensation	$ 9,586	$ 10,404	$ 17,690	$ 18,678
Cost of Sales [Member]
Stock-based Compensation	816	703	1,486	1,281
Selling and Marketing Expense [Member]
Stock-based Compensation	2,708	3,396	4,909	5,858
General and Administrative Expense [Member]
Stock-based Compensation	4,905	5,281	9,287	9,765
Research and Development Expense [Member]
Stock-based Compensation	$ 1,157	$ 1,024	$ 2,008	$ 1,774