Note N - Other Income and Expense - Other Income and Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Foreign exchange transaction gain (loss)	$ (1,488)	$ 454	$ 1
Government subsidy income	160	1,345	2,708
Other non-operating gain	76	129	304
Loan forgiveness	(0)	6,229	(0)
Gain (loss) on disposal of assets	47	(1)	(15)
Total other gain (loss), net	$ (1,205)	$ 8,156	$ 2,998