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Geographic Information and Concentrations of Risk
9 Months Ended
Sep. 30, 2019
Segment Reporting [Abstract]  
Geographic Information and Concentrations of Risk Geographic Information and Concentrations of Risk
Geographic Information
The following table details the Company’s net revenues by geographic region based on shipping destination (in thousands):
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2019
 
2018
 
2019
 
2018
United States and Canada
$
47,378

 
$
35,891

 
$
122,331

 
$
98,559

South Africa
9,237

 
9,145

 
26,164

 
30,038

Other
6,101

 
5,594

 
18,668

 
17,823

Total
$
62,716

 
$
50,630

 
$
167,163

 
$
146,420


Concentrations of Risk
For the three months ended September 30, 2019 and 2018, one customer accounted for 57.7% and 46.9% of net revenues, respectively. For the nine months ended September 30, 2019 and 2018, one customer accounted for 55.8% and 46.6% of net revenues, respectively.
As of September 30, 2019, one customer accounted for 33.5% of accounts receivable, net. As of December 31, 2018, two customers accounted for 30.5% and 12.8% of accounts receivable, net, respectively.