Goodwill and Other Intangible Assets (Schedule of Changes in Intangible Assets and Goodwill) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Amortized intangible assets:
Beginning balance	$ 385
Amortization	$ (173)
Currency Translation
Ending balance	$ 212
Goodwill
Beginning balance	$ 71,680
Amortization
Currency translation	$ (4,090)
Ending balance	67,590
AEC Trade Names [Member]
Amortized intangible assets:
Beginning balance	29
Amortization	$ (3)
Currency Translation
Ending balance	$ 26
AEC Customer Contracts [Member]
Amortized intangible assets:
Beginning balance	202
Amortization	$ (152)
Currency Translation
Ending balance	$ 50
AEC Technology [Member]
Amortized intangible assets:
Beginning balance	154
Amortization	$ (18)
Currency Translation
Ending balance	$ 136