v3.7.0.1
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