Note P - Share-based Compensation - Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2023
Outstanding, number of shares (in shares)	263
Outstanding, weighted average exercise price (in dollars per share)	$ 10.41
Outstanding, weighted average fair value (in dollars per share)	$ 5.45
Outstanding, weighted average remaining contractual life (Year)	29 days	8 months 15 days
Outstanding, aggregate intrinsic value	$ 8		$ 0
Exercised, number of shares (in shares)	(48)
Exercised, weighted average exercise price (in dollars per share)	$ 11.33
Exercised, weighted average share price on date of exercise (in dollars per share)	16.23
Exercised, weighted average fair value (in dollars per share)	$ 5.81
Exercised, aggregate intrinsic value	$ 237
Forfeited, number of shares (in shares)	(214)
Forfeited, weighted average exercise price (in dollars per share)	$ 10.18
Forfeited, weighted average fair value (in dollars per share)	$ 5.36
Forfeited, aggregate intrinsic value	$ 1,955
Outstanding, number of shares (in shares)	1	263
Outstanding, weighted average exercise price (in dollars per share)	$ 13.84	$ 10.41
Outstanding, weighted average fair value (in dollars per share)	$ 7.12	$ 5.45
Exercisable, number of shares (in shares)	1
Exercisable, weighted average exercise price (in dollars per share)	$ 13.84
Exercisable, weighted average fair value (in dollars per share)	$ 7.12
Exercisable, weighted average remaining contractual life (Year)	29 days
Exercisable, aggregate intrinsic value	$ 8
Vested and expected to vest, number of shares (in shares)	1
Vested and expected to vest, weighted average exercise price (in dollars per share)	$ 13.84
Vested and expected to vest, weighted average fair value (in dollars per share)	$ 7.12
Vested and expected to vest, weighted average remaining contractual life (Year)	29 days
Vested and expected to vest, aggregate intrinsic value	$ 8