Quarterly report pursuant to Section 13 or 15(d)

Major Customers (Details)

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Major Customers (Details) - Revenues. - Customer concentration risk - Fidelity - customer
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Major Customers        
Number of customers accounted for as major customer 1 1 1 1
Major customer as a percentage of the company's total 18.00% 19.00% 18.00% 19.00%