Note P - Share-based Compensation - Share-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Total share-based compensation expense	$ 9,600	$ 12,121	$ 13,046
Cost of Sales [Member]
Total share-based compensation expense	488	885	937
Research and Development Expense [Member]
Total share-based compensation expense	1,332	2,173	2,812
Selling and Marketing Expense [Member]
Total share-based compensation expense	857	1,115	1,191
General and Administrative Expense [Member]
Total share-based compensation expense	$ 6,923	$ 7,948	$ 8,106