Note N - Share-based Compensation - Outstanding Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 25, 2023	Mar. 26, 2023
Options outstanding (in shares)	20,000
Options outstanding, weighted average exercise price (in dollars per share)	$ 79.20
Options outstanding, weighted average remaining contractual term (Year)	1 year 8 months 1 day	1 year 11 months 1 day
Options outstanding, aggregate intrinsic value	$ 78	$ 40
Exercised, aggregate intrinsic value	$ 0
Options outstanding (in shares)	20,000	20,000
Options outstanding, weighted average exercise price (in dollars per share)	$ 79.20	$ 79.20
Options exercisable (in shares)	12,500
Options exercisable, weighted average exercise price (in dollars per share)	$ 85.62
Options exercisable, weighted average remaining contractual term (Year)	9 months 18 days
Options exercisable, aggregate intrinsic value	$ 19