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Business Segment, Geographic and Customer Information (Reconciliation of Assets from Segment to Consolidated) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets	$ 66,939	$ 72,838
Operating Segments [Member]
Assets	66,939	72,838
T And D Solutions Segment [Member] | Operating Segments [Member]
Assets	49,113	53,430
Critical Power Solutions Segment [Member] | Operating Segments [Member]
Assets	13,841	13,994
Corporate [Member] | Operating Segments [Member]
Assets	$ 3,985	$ 5,414

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.18)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 12
-Article 7

+ Details

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Balance Type:	debit
Period Type:	instant

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- Details

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- Details

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- Details

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X

- Details

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