XML 23 R1.htm IDEA: XBRL DOCUMENT v2.4.0.6
Document And Entity Information
 3 Months Ended
Dec. 24, 2011
Jan. 16, 2012
Document and Entity Information [Abstract]    
Entity Registrant Name J&J SNACK FOODS CORP  
Document Type 10-Q  
Current Fiscal Year End Date --09-29  
Entity Common Stock, Shares Outstanding   18,789,514
Amendment Flag false  
Entity Central Index Key 0000785956  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Filer Category Accelerated Filer  
Entity Well-known Seasoned Issuer No  
Document Period End Date Dec. 24, 2011  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q1