Note F - Earnings Per Share - Computation of Basic and Diluted Net Income (Loss) per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net loss	$ (56,048)	$ (66,397)	$ (54,162)
Basic (in shares)	31,944,259	27,846,387	26,912,141
Effect of dilutive options and restricted stock units (in shares)	0	0	0
Diluted (in shares)	31,944,259	27,846,387	26,912,141
Basic (in dollars per share)	$ (1.75)	$ (2.38)	$ (2.01)
Diluted (in dollars per share)	$ (1.75)	$ (2.38)	$ (2.01)