Business Segment Information Foreign Currency Transaction Gain (Loss) (Details) - Reportable Geographical Components [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Jul. 31, 2016	Jul. 31, 2015	Oct. 31, 2014
Europe
Segment Reporting Information [Line Items]
Foreign Currency Transaction Gain (Loss), before Tax	$ (802)	$ (23)	$ 109
Non-US [Member]
Segment Reporting Information [Line Items]
Foreign Currency Transaction Gain (Loss), before Tax	$ (772)	$ (483)	$ (111)

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30700-110894

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30690-110894

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration