Document And Entity Information - USD ($) $ in Thousands	12 Months Ended
	Mar. 26, 2017	Jun. 06, 2017	Sep. 25, 2016
Document Information [Line Items]
Entity Registrant Name	NATHANS FAMOUS INC
Entity Central Index Key	0000069733
Trading Symbol	nath
Current Fiscal Year End Date	--03-26
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		4,179,050
Entity Public Float			$ 143,198
Document Type	10-K
Document Period End Date	Mar. 26, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Amendment Flag	false