Fair Values of Financial Investments - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - USD ($)	Aug. 06, 2022	Nov. 06, 2021
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Equity securities in a public company	$ 541,132	$ 621,928
Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Equity securities in a public company	541,132	621,928
Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Equity securities in a public company	0	0
Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Equity securities in a public company	$ 0	$ 0