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Supplementary Balance Sheet Information (Accrued Expenses and Current Portion of Other Long-Term Liabilities) (Details) - USD ($) | Sep. 28, 2024 | Sep. 30, 2023
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Supplementary Balance Sheet Information [Line Items] |  |
Property, payroll, and other taxes payable | $ 22,592,669 | $ 25,203,091
Salaries, wages, and bonuses payable | 48,869,003 | 50,836,143
Interest | 4,984,248 | 5,111,666
Other | 6,177,911 | 5,610,526
Total accrued expenses and current portion of other long-term liabilities | 99,101,275 | 100,735,784
Employee Group Insurance [Member] |  |
Supplementary Balance Sheet Information [Line Items] |  |
Self-insurance liabilities | 5,849,118 | 4,536,309
Workers' Compensation Insurance [Member] |  |
Supplementary Balance Sheet Information [Line Items] |  |
Self-insurance liabilities | 4,937,591 | 4,711,748
General Liability Insurance [Member] |  |
Supplementary Balance Sheet Information [Line Items] |  |
Self-insurance liabilities | $ 5,690,735 | $ 4,726,301

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