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Significant Customers & Concentration of Credit Risk	6 Months Ended
Significant Customers & Concentration of Credit Risk	Jun. 30, 2017
Risks and Uncertainties [Abstract]
Significant Customers & Concentration of Credit Risk	Significant Customers & Concentration of Credit Risk We have a market concentration of revenue in both the automotive sector and financial services & insurance sector. Revenue from the automotive industry accounted for approximately 23% and 22% of our consolidated revenue for the six months ended June 30, 2017 and 2016, respectively. In addition, we have a concentration of revenue from a single automotive customer, which accounted for approximately 14% of our consolidated revenue for both of the six-month periods ended June 30, 2017 and 2016. As of June 30, 2017, accounts receivable from a single automotive customer totaled $16.4 million, or 16%, of our consolidated accounts receivable balance. Revenue from the financial services & insurance industry accounted for approximately 19% and 21% of our consolidated revenue for the six months ended June 30, 2017 and 2016, respectively. In addition, we have a concentration of revenue from a single financial services customer, which accounted for approximately 13% and 15% of our consolidated revenue for the six months ended June 30, 2017 and 2016, respectively. As of June 30, 2017, billed and unbilled accounts receivable from a single financial services customer totaled $24.9 million, or 17%, of our consolidated accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts balances. No other single customer accounted for more than 10% of our consolidated revenue for the six months ended June 30, 2017 or 2016 or consolidated accounts receivable balance as of June 30, 2017.