XML 12 R1.htm IDEA: XBRL DOCUMENT v3.20.2
Document And Entity Information - shares
 9 Months Ended
Jun. 27, 2020
Aug. 04, 2020
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 27, 2020  
Current Fiscal Year End Date --09-26  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q3  
Entity File Number 0-14706  
Entity Registrant Name INGLES MARKETS, INCORPORATED  
Entity Incorporation, State or Country Code NC  
Entity Tax Identification Number 56-0846267  
Entity Address, Address Line One P.O. Box 6676  
Entity Address, City or Town Asheville  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 28816  
City Area Code 828  
Local Phone Number 669-2941  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Title of 12(b) Security Class A Common Stock, $0.05 par value per share  
Trading Symbol IMKTA  
Security Exchange Name NASDAQ  
Entity Central Index Key 0000050493  
Amendment Flag false  
Class A Common Stock [Member]    
Entity Common Stock, Shares Outstanding   14,204,360
Class B Common Stock [Member]    
Entity Common Stock, Shares Outstanding   6,055,416