Goodwill and Other Intangible Assets (Schedule of Changes in Intangible Assets and Goodwill) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Amortized intangible assets:
Beginning balance	$ 385
Amortization	$ (115)
Currency Translation
Ending balance	$ 270
Goodwill
Beginning balance	$ 71,680
Amortization
Currency translation	$ (4,191)
Ending balance	67,489
AEC Trade Names [Member]
Amortized intangible assets:
Beginning balance	29
Amortization	$ (2)
Currency Translation
Ending balance	$ 27
AEC Customer Contracts [Member]
Amortized intangible assets:
Beginning balance	202
Amortization	$ (101)
Currency Translation
Ending balance	$ 101
AEC Technology [Member]
Amortized intangible assets:
Beginning balance	154
Amortization	$ (12)
Currency Translation
Ending balance	$ 142