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.

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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.

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Summary of Significant Accounting Policies (Schedule of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended	12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Goodwill, beginning balance				$ 54,348us-gaap_Goodwill	$ 54,348us-gaap_Goodwill	$ 62,208us-gaap_Goodwill
Acquisition of business					664us-gaap_GoodwillAcquiredDuringPeriod
Goodwill impairment charge (benefit)					(51,458)us-gaap_GoodwillImpairmentLoss
Currency translation					(2,476)us-gaap_GoodwillTranslationAdjustments	(7,860)us-gaap_GoodwillTranslationAdjustments
Goodwill, ending balance	1,078us-gaap_Goodwill				1,078us-gaap_Goodwill	54,348us-gaap_Goodwill
Electronics [Member]
Segment Reporting Information [Line Items]
Goodwill, beginning balance				604	604	598
Acquisition of business					664
Currency translation					(190)	6
Goodwill, ending balance	1,078				1,078	604
Control Devices [Member]
Segment Reporting Information [Line Items]
Goodwill, beginning balance
Currency translation
Goodwill, ending balance
PST [Member]
Segment Reporting Information [Line Items]
Goodwill, beginning balance				53,744	53,744	61,610
Goodwill impairment charge (benefit)	(27,960)	5,802	(29,300)	(23,498)	(51,458)
Currency translation					(2,286)	(7,866)
Goodwill, ending balance						$ 53,744