Note O - Income Taxes - Provision for Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Federal	$ 0	$ 0	$ 41
State	1	2	2
Foreign	0	0	0
Total	1	2	43
Federal	0	0	(172)
State	0	0	0
Foreign	0	0	7,357
Total	0	0	7,185
Income tax (benefit) expense	$ 1	$ 2	$ 7,228