Note L - Stockholders' Equity, Stock Plans and Other Employee Benefit Plans - Transactions With Respect to Restricted Stock (Details) - $ / shares	12 Months Ended
	Mar. 31, 2024	Mar. 26, 2023
Unvested, shares (in shares)	50,000	0
Unvested, weighted average grant date fair value (in dollars per share)	$ 67.59	$ 0
Granted, Units (in shares)	0	50,000
Granted, weighted-average grant date fair value (in dollars per share)	$ 0	$ 67.59
Vested, shares (in shares)	(10,000)	0
Vested, weighted average grant date fair value (in dollars per share)	$ 67.59	$ 0
Unvested, shares (in shares)	40,000	50,000
unvested, weighted average grant date fair value (in dollars per share)	$ 67.59	$ 67.59