Contingencies (Details) (Unasserted Claim [Member], Pending Litigation [Member], USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Unasserted Claim [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Lawsuit Filing Date	February 2013
Loss Contingency, Allegations	contractual interpretation of products subject to license agreements between the inventor and the Company, and payment of royalties
Loss Contingency, Damages Sought, Value	$ 90,000
Loss Contingency, Inestimable Loss	The Company currently cannot estimate a possible loss or range of loss.