Business Combination, Goodwill and Intangibles - Intangibles (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]
Total finite and indefinite-lived intangible assets, gross	$ 5,674	$ 3,507
Accumulated amortization	(1,416)	(817)
Intangible assets, net (excluding goodwill)	4,258	2,690
Amortization of Intangible Assets	679	393
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2013	533
2014	528
2015	483
2016	446
2017	357
Thereafter	1,752
Finite-lived intangible assets, future amortization expense	4,099
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 Technology
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	394
Other
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	5 years
Finite-lived intangible assets, gross	49	49
In-process Research and Development
Goodwill and Intangible Assets Disclosure [Abstract]
Indefinite-lived Intangible Assets	$ 159	$ 559
Minimum
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	3 years
Minimum | Proprietary Software
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)	10 years
Maximum | Proprietary Software
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	15 years