Note O - Income Taxes - Income (Loss) from Operations Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Domestic	$ (45,404)	$ (21,229)	$ (20,288)
Foreign	(20,992)	(32,931)	(30,936)
Total loss before income taxes	$ (66,396)	$ (54,160)	$ (51,224)