Business Combination, Goodwill and Intangibles - Intangibles (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Total finite and indefinite-lived intangible assets, gross	$ 5,674		$ 5,674
Accumulated amortization	(1,559)		(1,416)
Intangible assets, net (excluding goodwill)	4,115		4,258
Amortization of Intangible Assets	143	102
In-process research and development
Goodwill and Intangible Assets Disclosure [Abstract]
Indefinite-lived Intangible Assets	159		159
Tradename
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	7 years
Finite-lived intangible assets, gross	435		435
Patents and technological know-how
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	10 years
Finite-lived intangible assets, gross	2,070		2,070
Proprietary software
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, gross	2,961		2,961
Other
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	5 years
Finite-lived intangible assets, gross	$ 49		$ 49
Minimum
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	3 years
Maximum
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	15 years