Note 11 - Common Stock and Stock-based Compensation Plans - Equity-based Compensation Expense Included in Interim Condensed Consolidated Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Total equity-based compensation expense	$ 3,900	$ 4,205	$ 7,471	$ 8,064
Cost of Revenues [Member]
Total equity-based compensation expense	191	214	394	420
Research and Development, Net [Member]
Total equity-based compensation expense	2,438	2,344	4,445	4,446
Sales and Marketing [Member]
Total equity-based compensation expense	451	449	816	827
General and Administrative [Member]
Total equity-based compensation expense	820	897	1,816	1,758
Total Equity-based Compensation Expense From Continuing Operations [Member]
Total equity-based compensation expense	3,900	3,904	7,471	7,451
Equity-based Compensation Expense Included in Discontinued Operations [Member]
Total equity-based compensation expense	$ 0	$ 301	$ 0	$ 613