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Goodwill and Intangible Assets - Schedule of Changes in Carrying Amounts of Goodwill by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill, Beginning balance	$ 1,031	$ 3,027
Impairment	(513)	(1,773)
Translation adjustment	(2)	(223)
Goodwill, Ending balance	516	1,031
Energy & Security Sonar Solutions [Member]
Goodwill, Beginning balance	$ 518	$ 581
Impairment
Translation adjustment	$ (2)	$ (63)
Goodwill, Ending balance	516	518
Smart Grid Distribution Automation [Member]
Goodwill, Beginning balance	513	2,446
Impairment	$ (513)	(1,773)
Translation adjustment		(160)
Goodwill, Ending balance		$ 513

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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X

- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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+ References

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