Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Number of Shares
Options, Outstanding Beginning of Period	123,333	236,134
Granted	0	0
Exercised	(18,650)	(86,468)
Canceled	(11,350)	(12,333)
Options, Outstanding End of Period	93,333	137,333
Options, Exercisable, End of Period	93,333	127,666
Weighted-Average Exercise Price
Options, Outstanding, Beginning of Period, Weighted Average Exercise Price Per Share	$ 9.69	$ 9.93
Granted, Weighted Average Exercise Price Per Share	0.00	0.00
Exercised, Weighted Average Exercise Price Per Share	8.30	9.92
Canceled, Weighted Average Exercise Price Per Share	11.58	7.19
Options, Exercisable, Weighted Average Exercise Price Per Share	9.74	9.86
Options, Outstanding, End of Period, Weighted Average Exercise Price Per Share	$ 9.74	$ 9.73
Options Outstanding, Weighted Average Remaining Contractual Term	4 years 6 months 4 days	5 years 9 months 5 days
Options Outstanding, Intrinsic Value	$ 244	$ 976
Options Exercisable, Weighted Average Remaining Contractual Term	4 years 6 months 4 days	5 years 7 months 8 days
Options Exercisable, Intrinsic Value	$ 244	$ 890