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, 2022	Dec. 31, 2021	Dec. 31, 2020
Net loss	$ (66,397)	$ (54,162)	$ (58,452)
Basic (in shares)	27,846,387	26,912,141	21,866,630
Effect of dilutive options and restricted stock units (in shares)	0	0	0
Diluted (in shares)	27,846,387	26,912,141	21,866,630
Basic (in dollars per share)	$ (2.38)	$ (2.01)	$ (2.67)
Diluted (in dollars per share)	$ (2.38)	$ (2.01)	$ (2.67)