Note B - Summary of Significant Accounting Policies - Summary of Franchise Openings and Closings for the Nathan's Franchise Restaurant System (Details) - Franchised Units [Member]	12 Months Ended
	Mar. 27, 2022	Mar. 28, 2021
Franchised restaurants operating at the beginning of the period	213	216
New franchised restaurants opened during the period	54	7
Franchised restaurants closed during the period	(28)	(10)
Franchised restaurants operating at the end of the period	239	213