Annual report pursuant to Section 13 and 15(d)

Major Customers (Details)

v3.3.1.900
Major Customers (Details) - Revenues. - Customer concentration risk - Fidelity - customer
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Major Customers      
Number of customers accounted for as major customer 1    
Major customer as a percentage of the company's total 18.00% 19.00% 20.00%