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Contingencies (Details)	9 Months Ended
Contingencies (Details)	Sep. 30, 2012 defendant lawsuit
Contingencies [Abstract]
Lawsuit filing date	June 25, 2012
Name of plantiff	American Vehicular Sciences LLC
Complaints filed	4
Domicile of litigation	United States District Court in the Eastern District of Texas
Number of defendants	2
Date lawsuit was served	Jul. 27, 2012
Date complaints were answered	Oct. 05, 2012

Identifies the domicile or jurisdiction of the court of law, arbitration or mediation proceeding.

States the date the complaint was formally filed in a court of law, in arbitration or mediation.

Identifies the plaintiff in the lawsuit.