Goodwill and Other Intangible Assets (Schedule of Changes in Intangible Assets and Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Amortized intangible assets:
Beginning balance	$ 616
Amortization	(57)
Currency Translation
Ending balance	559
Goodwill
Beginning balance	78,890
Amortization
Currency translation	54
Ending balance	78,944
AEC Trade Names [Member]
Amortized intangible assets:
Beginning balance	33
Amortization	(1)
Currency Translation
Ending balance	32
AEC Customer Contracts [Member]
Amortized intangible assets:
Beginning balance	404
Amortization	(50)
Currency Translation
Ending balance	354
AEC Technology [Member]
Amortized intangible assets:
Beginning balance	179
Amortization	(6)
Currency Translation
Ending balance	$ 173