Document And Entity Information (USD $)	12 Months Ended
	Mar. 31, 2013	Jun. 07, 2013	Sep. 23, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	NATHANS FAMOUS INC
Document Type	10-K
Current Fiscal Year End Date	--03-31
Entity Common Stock, Shares Outstanding		4,460,120
Entity Public Float			$ 101,854,000
Amendment Flag	false
Entity Central Index Key	0000069733
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Mar. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY