Business acquisitions, Pro Forma Information (Detail) - Rel-Tech Electronics, Inc [Member] - USD ($)	3 Months Ended	9 Months Ended
Jul. 31, 2015	Jul. 31, 2015
Revenue	$ 8,860,000	$ 26,029,000
Net income	$ 144,000	$ 688,000
Earnings per share
Basic	$ 0.02	$ 0.08
Diluted	$ 0.02	$ 0.08

No definition available.

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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