6. Significant customers
The following table summarizes net revenue or gross accounts receivable for customers which accounted for 5% or more of net revenue and gross accounts receivable:
|
|
|
Net revenue |
|
Gross accounts receivable |
|
||||||||
|
|
|
Year ended December 31, |
|
December 31, |
|
||||||||
|
|
|
2017 |
|
2016 |
|
2015 |
|
2017 |
|
2016 |
|
2015 |
|
|
Customer A |
|
636,662 |
|
382,853 |
|
366,696 |
|
133,281 |
|
78,639 |
|
75,643 |
|
|
Customer B |
|
538,102 |
|
609,802 |
|
324,267 |
|
95,575 |
|
129,619 |
|
50,068 |
|
|
Customer C |
|
206,635 |
|
* |
|
* |
|
28,521 |
|
* |
|
* |
|
|
Customer A |
|
21 |
% |
13 |
% |
16 |
% |
33 |
% |
16 |
% |
19 |
% |
|
Customer B |
|
17 |
% |
21 |
% |
15 |
% |
23 |
% |
26 |
% |
13 |
% |
|
Customer C |
|
7 |
% |
* |
|
* |
|
7 |
% |
* |
|
* |
|
*Less than 5% of net revenue and gross accounts receivable in the year.