Stock Option Plan - Option Granted (Detail) - USD ($)	12 Months Ended
	Nov. 05, 2016	Oct. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Beginning, Number of Shares	5,000	7,000
Granted, Number of Shares	5,000
Exercised, Number of Shares	(4,000)	(2,000)
Canceled, Number of Shares	0	0
Outstanding Ending, Number of Shares	6,000	5,000
Granted, Stock Option Price Range	$ 12.10
Exercised, Stock Option Price Range		$ 7.91
Canceled, Stock Option Price Range	0	0
Outstanding Beginning, Weighted Average Exercise Price	9.47	9.02
Granted, Weighted Average Exercise Price	12.10
Exercised, Weighted Average Exercise Price	9.72	7.91
Canceled, Weighted Average Exercise Price	0	0
Outstanding Ending, Weighted Average Exercise Price	$ 11.50	9.47
Outstanding Ending, Aggregate Intrinsic Value	$ 24,010
Minimum Range [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Beginning, Stock Option Price Range	$ 8.49	7.91
Exercised, Stock Option Price Range	8.49
Canceled, Stock Option Price Range	0	0
Outstanding Ending, Stock Option Price Range	8.49	8.49
Maximum Range [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Beginning, Stock Option Price Range	10.45	10.45
Exercised, Stock Option Price Range	10.45
Canceled, Stock Option Price Range	0	0
Outstanding Ending, Stock Option Price Range	$ 12.10	$ 10.45