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Related Party Transactions (Narrative) (Details)
12 Months Ended
Sep. 30, 2023
USD ($)
property
Sep. 24, 2022
USD ($)
Sep. 25, 2021
USD ($)
Equity, Class of Treasury Stock [Line Items]      
Capital expenditure $ 173,591,468 $ 119,608,974 $ 140,597,162
Investment Profit Sharing Plan [Member]      
Equity, Class of Treasury Stock [Line Items]      
Short-term non-interest bearing loans $ 330,000    
Robert P. Ingle II, Chairman of Board [Member]      
Equity, Class of Treasury Stock [Line Items]      
Number of properties purchased | property 2    
Capital expenditure $ 5,800,000