Note L - Stockholders' Equity, Stock Plans and Other Employee Benefit Plans - Outstanding Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 27, 2022	Mar. 28, 2021	Mar. 29, 2020
Options outstanding (in shares)	20,000	10,000	10,000
Options outstanding, weighted average exercise price (in dollars per share)	$ 79.20	$ 89.90	$ 89.90
Options outstanding, weighted average remaining contractual life (Year)	2 years 11 months 1 day
Options outstanding, aggregate intrinsic value	$ 0
Options exercisable (in shares)	10,000	6,667
Options exercisable, weighted average exercise price (in dollars per share)	$ 89.90	$ 89.90
Options exercisable, weighted average remaining contractual life (Year)	1 year 5 months 15 days
Options exercisable, aggregate intrinsic value	$ 0