Restatement of Previously Issued Financial Statements Impact of Restatement on Statement of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2015	Jan. 31, 2014
Net income	$ 2,443	$ 4,939
Comprehensive loss	(10,821)	$ 4,531
Restatement Adjustment [Member]
Net income	(1,230)
Comprehensive loss	(1,230)
Scenario, Previously Reported [Member]
Net income	3,673
Comprehensive loss	$ (9,591)