Activity - Stock Option, Restricted Stock and Restricted Stock Units (Details) - $ / shares	9 Months Ended			12 Months Ended
	Jul. 31, 2016		Jul. 31, 2015	Oct. 31, 2015	Oct. 31, 2014
Employee Stock Option [Member]
Number of Shares
Options, Outstanding Beginning of Period	90,666		123,333	123,333
Granted			0
Exercised	0		(19,317)
Canceled	(1,000)		(11,350)
Options, Outstanding End of Period	89,666		92,666	90,666	123,333
Weighted-Average Exercise Price
Options, Outstanding, Beginning of Period, Weighted Average Exercise Price Per Share	$ 9.70		$ 9.69	$ 9.69
Granted, Weighted Average Exercise Price Per Share			0
Exercised, Weighted Average Exercise Price Per Share	0		8.19
Forfeitures and Expirations in Period, Weighted Average Exercise Price	12.04		11.58
Options, Outstanding, End of Period, Weighted Average Exercise Price Per Share	$ 9.67		$ 9.77	$ 9.70	$ 9.69
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	3 years 4 months 1 day		4 years 3 months 4 days	4 years 1 month 6 days	5 years 1 month 25 days
Restricted Stock [Member]
Weighted Average Grant Date Fair Value Restricted Stock and RSUs
Nonvested, Beginning of Period	124,255		116,881	116,881
Stock, Granted	312,250		23,332
Stock, Vested	(25,958)		(48,129)
Stock, Forfeited	(5,817)		(6,750)
Nonvested, End of Period	404,730		85,334	124,255	116,881
Nonvested, Weighted Average Grant Date Fair Value, Beginning of Period	$ 13.77		$ 16.81	$ 16.81
Granted, Weighted Average Grant Date Fair Value	4.30		14.17
Vested, Weighted Average Grant Date Fair Value	16.53		16.70
Forfeited, Weighted Average Grant Date Fair Value	5.71		20.64
Nonvested, Weighted Average Grant Date Fair Value, End of Period	$ 6.40		$ 15.84	$ 13.77	$ 16.81
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms	2 years		1 year 9 months 21 days	2 years 3 months 10 days	2 years 6 months 30 days
Restricted Stock Units (RSUs) [Member]
Weighted Average Grant Date Fair Value Restricted Stock and RSUs
Nonvested, Beginning of Period	0		0	0
Stock, Granted	21,539		0
Stock, Vested	0		0
Stock, Forfeited	0		0
Nonvested, End of Period	21,539		0	0	0
Nonvested, Weighted Average Grant Date Fair Value, Beginning of Period	$ 0		$ 0	$ 0
Granted, Weighted Average Grant Date Fair Value	4.17	[1]	0
Vested, Weighted Average Grant Date Fair Value	0		0
Forfeited, Weighted Average Grant Date Fair Value	0		0
Nonvested, Weighted Average Grant Date Fair Value, End of Period	$ 4.17	[1]	$ 0	$ 0	$ 0

[1] (1) 20-day EMA effective with commencement of the 2016 Plan on March 9, 2016.