Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Income Tax Disclosure [Abstract]
Domestic									$ 4,251	$ 3,917	$ 17,063
Foreign									2,172	(5,400)	(6,448)
Income before income taxes									(6,423)	1,483	(10,615)
Federal									66	(3,900)	(545)
State and Local									386	329	384
Foreign									2,494	1,123	608
Total current									2,946	(2,448)	447
Federal									856	3,289	4,501
State and Local									(329)	156	208
Foreign									3,647	(6,149)	(446)
Total deferred									4,174	(2,704)	4,263
Provision (benefit) for income taxes	$ 434	$ 4,439	$ 2,323	$ (76)	$ (4,949)	$ 1,344	$ 364	$ (1,911)	$ 7,120	$ (5,152)	$ 4,710