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Supplementary Balance Sheet Information (Schedule of Other Long-Term Liabilities) (Details) - USD ($) | Sep. 27, 2025 | Sep. 28, 2024
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Supplementary Balance Sheet Information [Line Items] |  |
Advance payments on purchases contracts | $ 4,062,274 | $ 3,063,450
Nonqualified investment plan liability | 32,459,144 | 28,916,206
Other | 7,332,622 | 5,927,404
Other long-term liabilities | 64,336,417 | 57,376,082
Less current portion | 2,663,475 | 1,394,960
Total other long-term liabilities | 61,672,942 | 55,981,122
Workers' Compensation Insurance [Member] |  |
Supplementary Balance Sheet Information [Line Items] |  |
Self-insurance liabilities | 11,758,783 | 12,137,235
General Liability Insurance [Member] |  |
Supplementary Balance Sheet Information [Line Items] |  |
Self-insurance liabilities | $ 8,723,594 | $ 7,331,787

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