v3.8.0.1
Document And Entity Information - shares
6 Months Ended
Sep. 24, 2017
Nov. 03, 2017
Document Information [Line Items]    
Entity Registrant Name NATHANS FAMOUS INC  
Entity Central Index Key 0000069733  
Trading Symbol nath  
Current Fiscal Year End Date --03-25  
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)   4,184,549
Document Type 10-Q  
Document Period End Date Sep. 24, 2017  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Amendment Flag false