Intangible and Other Assets Intangible Asset Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Patents [Member]	Dec. 31, 2012 Patents [Member]	Mar. 31, 2013 Licenses [Member]	Dec. 31, 2012 Licenses [Member]	Jun. 30, 2012 Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	$ 248		$ 99	$ 111		$ 60	$ 59
Finite-Lived Intangible Assets, Accumulated Amortization			834	822	16	15
Amortization of Intangible Assets	13	13
Pending Patent	$ 90
Finite-Lived Intangible Asset, Useful Life	5 years