Note P - Share-based Compensation - Share-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Total share-based compensation expense	$ 11,884	$ 9,600	$ 12,121
Cost of Sales [Member]
Total share-based compensation expense	524	488	885
Research and Development Expense [Member]
Total share-based compensation expense	1,492	1,332	2,173
Selling and Marketing Expense [Member]
Total share-based compensation expense	1,110	857	1,115
General and Administrative Expense [Member]
Total share-based compensation expense	$ 8,758	$ 6,923	$ 7,948