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Investments - Summary of Short-term Investments (Detail) - USD ($)
Nov. 02, 2019
Nov. 03, 2018
Investments, Debt and Equity Securities [Abstract]    
Available-for-sale Securities, Amortized Cost $ 167,930 $ 167,930
Available-for-sale Securities, Gross Unrealized Gains 353,353 369,837
Available-for-sale Securities, Gross Unrealized Losses 0 0
Available-for-sale Securities, Estimated Fair Value $ 521,283 $ 537,767