In-Process Research and Development and Goodwill (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Gross	$ 21		$ 21
Finite-Lived Intangible Assets, Accumulated Amortization	3		2
Finite-Lived Intangible Assets, Net, Total	18		19
Finite-Lived Intangible Asset, Useful Life	5 years
Estimated amortization of intangible assets for succeeding five years	4
Amortization of Intangible Assets	1
Goodwill and indefinite lived in-process research and development [Abstract]
Goodwill	7,702	7,702	7,702	0
Goodwill, Acquired During Period		7,702
Intangible Assets Acquired During Period		32,300
Indefinite-Lived Intangible Assets (Excluding Goodwill)	31,360	32,300	31,360	0
Impairment of Intangible Assets (Excluding Goodwill)	$ 0	$ 0