Income Taxes - Accompanying Deferred Current and Non-current Tax Assets and Liabilities in Consolidated Balance Sheet (Detail) - USD ($)	Nov. 06, 2021	Oct. 31, 2020
Current assets (liabilities):
Deferred tax assets
Deferred tax liabilities
Net current deferred tax assets
Non-current assets (liabilities):
Deferred tax assets	215,316	439,610
Deferred tax liabilities	(314,884)	(436,012)
Net non-current deferred tax assets (liabilities)	(99,568)	3,598
Net deferred tax assets (liabilities)	$ (99,568)	$ 3,598