Note N - Other Income and Expense - Other Income and Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Foreign exchange transaction gain (loss)	$ 711	$ (1,488)	$ 454
Government subsidy income	937	160	1,345
Other non-operating gain(loss)	(7,468)	76	129
Loan forgiveness	(0)	(0)	6,229
Gain (loss) on disposal of assets	(51)	47	(1)
Total other gain (loss), net	$ (5,871)	$ (1,205)	$ 8,156