Quarterly report pursuant to Section 13 or 15(d)

Major Customers (Details)

v3.7.0.1
Major Customers (Details) - Revenues - Customer concentration risk - Fidelity - customer
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Major Customers        
Number of customers accounted for as major customer 1 1 1 1
Revenue as a percentage of the company's total 16.00% 15.00% 16.00% 15.00%