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Warranty Costs - Summary of Amounts Related to Limited Warranty (Detail) - USD ($)
3 Months Ended 6 Months Ended
Apr. 30, 2016
May 02, 2015
Apr. 30, 2016
May 02, 2015
Accounting Policies [Abstract]        
Beginning accrued warranty expense $ 100,000 $ 75,000 $ 100,000 $ 75,000
Less: reduction for payments (156,905) (50,078) (300,373) (90,966)
Plus: additions to accrual 156,905 50,078 300,373 90,966
Ending accrued warranty expense $ 100,000 $ 75,000 $ 100,000 $ 75,000