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Supplementary Balance Sheet Information (Schedule of Other Long-Term Liabilities) (Details) - USD ($)	Sep. 30, 2023	Sep. 24, 2022
Supplementary Balance Sheet Information [Line Items]
Advance payments on purchases contracts	$ 2,992,494	$ 1,994,459
Nonqualified investment plan liability	21,768,079	18,445,157
Other	4,804,238	3,942,604
Other long-term liabilities	48,490,953	42,221,571
Less current portion	1,046,077	742,351
Total other long-term liabilities	47,444,876	41,479,220
Workers' Compensation Insurance [Member]
Supplementary Balance Sheet Information [Line Items]
Self-insurance liabilities	13,297,179	13,287,189
General Liability Insurance [Member]
Supplementary Balance Sheet Information [Line Items]
Self-insurance liabilities	$ 5,628,963	$ 4,552,162

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