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Business Segment and Geographic Information (Reconciliation of Revenue from Segments to Consolidated) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Revenues	$ 24,924	$ 26,111	$ 80,272	$ 68,068
Operating Income (Loss)	(3,332)	2,809	(4,102)	4,376
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues	24,924	26,111	80,272	68,068
Depreciation and Amortization	777	372	2,355	1,199
Operating Income (Loss)	(3,332)	2,809	(4,102)	4,376
Operating Segments [Member] | T & D Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	18,985	23,554	63,563	64,162
Depreciation and Amortization	375	343	1,165	1,112
Operating Income (Loss)	(2,052)	2,926	139	5,887
Operating Segments [Member] | Critical Power Solutions Segment [Member]
Segment Reporting Information [Line Items]
Revenues	5,939	2,557	16,709	3,906
Depreciation and Amortization	384	17	1,139	53
Operating Income (Loss)	(650)	764	(2,028)	646
Operating Segments [Member] | Corporate Segment [Member]
Segment Reporting Information [Line Items]
Depreciation and Amortization	18	12	51	34
Operating Income (Loss)	$ (630)	$ (881)	$ (2,213)	$ (2,157)

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- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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-Topic 360



-SubTopic 10



-Section 50



-Paragraph 1



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-Name Accounting Standards Codification



-Topic 230



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-Section 45



-Paragraph 28



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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1)



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