Income Taxes - Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($)	Oct. 31, 2020	Nov. 02, 2019
Deferred tax assets:
Allowance for doubtful accounts	$ 56,864	$ 58,773
Inventories	46,790	48,360
Accrued expenses	112,999	158,171
Other assets	23,224	55,903
Lease right of use liability	196,839
Stock-based compensation	2,894	2,072
Total deferred tax assets	439,610	323,279
Deferred tax liabilities:
Depreciation	(141,270)	(78,553)
Carrying value of investments	(47,435)	(90,168)
Amortization	(38,324)	(39,611)
Prepaid expenses	(33,562)	(34,542)
Lease right of use asset	(175,421)
Net deferred tax assets (liabilities)	$ 3,598	$ 80,405