Note 2 - Summary of Significant Accounting Policies (Details) - Summary of Franchise Openings and Closings for the Nathan’s Franchise Restaurant System	Mar. 30, 2014	Mar. 31, 2013	Mar. 25, 2012
Franchised Restaurants Operating Beginning of Period [Member]
Franchisor Disclosure [Line Items]
Restaurants	303	299	264
New Franchised Restaurants Opened During Period [Member]
Franchisor Disclosure [Line Items]
Restaurants	56	40	67
Franchised Restaurants Closed During Period [Member]
Franchisor Disclosure [Line Items]
Restaurants	(35)	(36)	(32)
Franchised Restaurants Operating End of Period [Member]
Franchisor Disclosure [Line Items]
Restaurants	324	303	299