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Significant Customers & Concentration of Credit Risk
9 Months Ended
Sep. 30, 2013
Risks and Uncertainties [Abstract]  
Concentration Risk Disclosure [Text Block]
(2)
Significant Customers & Concentration of Credit Risk
 
We have a market concentration of revenue in the automotive sector. Revenue from the automotive industry accounted for approximately 16% and 17% of our consolidated revenue for the nine months ended September 30, 2013 and 2012, respectively. We also have a concentration of revenue from the United States government. For the nine months ended September 30, 2013 and 2012, sales to the United States government and its agencies represented approximately 10% and 13%, respectively, of our consolidated revenue. Revenue was derived from many separate contracts with a variety of government agencies that are regarded by us as separate customers. No single customer accounted for more than 10% of our revenue for the nine months ended September 30, 2013 or accounts receivable as of September 30, 2013.