Intangible and Other Assets Intangible Asset Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Patents	Dec. 31, 2013 Patents	Sep. 30, 2014 Licenses	Dec. 31, 2013 Licenses
Finite-Lived Intangible Assets [Line Items]
Pending Patent	$ 111		$ 111
Finite-lived intangible assets, net	221		221		59	62	51	110
Finite-lived intangible assets, accumulated amortization					906	871	97	38
Amortization of intangible assets	$ 31	$ 14	$ 94	$ 41
Finite-lived intangible asset, useful life			5 years