Note C - Revenues - Revenues by Geographical Market (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Revenues	$ 38,744	$ 37,497	$ 80,729	$ 77,217
UNITED STATES
Revenues	37,444	36,095	77,326	74,012
Non-US [Member]
Revenues	$ 1,300	$ 1,402	$ 3,403	$ 3,205