Acquisitions Contech Intangibles (Details) (Contech [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended			9 Months Ended	12 Months Ended		9 Months Ended		9 Months Ended	12 Months Ended		6 Months Ended	12 Months Ended
	Jul. 31, 2014	Apr. 17, 2014	Aug. 02, 2013	Jul. 31, 2014 Developed Technology Rights [Member]	Oct. 31, 2013 Developed Technology Rights [Member]	Aug. 02, 2013 Developed Technology Rights [Member]	Jul. 31, 2014 Goodwill [Member]	Aug. 02, 2013 Goodwill [Member]	Jul. 31, 2014 Trade Names [Member]	Oct. 31, 2013 Trade Names [Member]	Aug. 02, 2013 Trade Names [Member]	Apr. 30, 2014 Trademarks [Member]	Oct. 31, 2013 Trademarks [Member]	Aug. 02, 2013 Trademarks [Member]
Business Acquisition [Line Items]
Goodwill Deductible for Tax Purposes								$ 4,605
Useful Life	15 years			5 years	5 years		15 years		0 years 3 months	0 years 3 months		10 years	10 years
Acquired Intangible Assets			2,898
Intangibles		$ 2,898				$ 2,707					$ 25			$ 166