Income Taxes - Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($)	Nov. 06, 2021	Oct. 31, 2020
Deferred tax assets:
Allowance for doubtful accounts	$ 55,455	$ 56,864
Inventories		46,790
Prepaid Expenses	14,295
Accrued expenses	107,893	112,999
Other assets	17,789	23,224
Lease right of use liability	382	196,839
Stock-based compensation	19,502	2,894
Total deferred tax assets	215,316	439,610
Deferred tax liabilities:
Depreciation	(135,466)	(141,270)
Carrying value of investments	(109,146)	(47,435)
Amortization	(37,374)	(38,324)
Prepaid expenses	(32,516)	(33,562)
Lease right of use asset	(382)	(175,421)
Net deferred tax assets (liabilities)	$ (99,568)	$ 3,598