Note R - Segment and Geographic Information - Revenue Information by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue, net	$ 222,818	$ 211,565	$ 234,623
UNITED STATES
Revenue, net	7,423	14,633	18,380
TAIWAN
Revenue, net	164,144	99,201	131,076
CHINA
Revenue, net	$ 51,251	$ 97,731	$ 85,167