Note P - Share-based Compensation - Restricted Stock Unit/Awards Activity (Details) - Restricted Stock Units (RSUs) [Member] $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares
Outstanding, number of shares (in shares) | shares	2,170
Outstanding, weighted average fair value (in dollars per share)	$ 11.15
Outstanding, aggregate intrinsic value | $	$ 11,156
Granted, number of shares (in shares) | shares	1,977
Granted, weighted average fair value (in dollars per share)	$ 2.04
Granted, aggregate intrinsic value | $	$ 3,687
Released, number of shares (in shares) | shares	(1,023)
Released, weighted average share price on date of release (in dollars per share)	$ 2.75
Released, weighted average fair value (in dollars per share)	$ 8.65
Released, aggregate intrinsic value | $	$ 2,818
Cancelled/Forfeited, number of shares (in shares) | shares	(149)
Cancelled/Forfeited, weighted average fair value (in dollars per share)	$ 10.02
Cancelled/Forfeited, aggregate intrinsic value | $	$ 281
Outstanding, number of shares (in shares) | shares	2,975
Outstanding, weighted average fair value (in dollars per share)	$ 6.01
Outstanding, aggregate intrinsic value | $	$ 5,623
Vested and expected to vest, number of shares (in shares) | shares	2,975
Vested and expected to vest, weighted average fair value (in dollars per share)	$ 6.01
Vested and expected to vest, aggregate intrinsic value | $	$ 5,623