Fair Values of Financial Investments - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - USD ($)	Nov. 05, 2016	Oct. 31, 2015
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Equity securities in a public company	$ 481,025	$ 462,578
Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Equity securities in a public company	$ 481,025	$ 462,578