Concentrations	9 Months Ended
Sep. 30, 2017
Concentrations
Concentrations	11. Concentrations For the three and nine months ended September 30, 2017, four customers accounted for 61% and 63% of our revenue, respectively. For the three and nine months ended September 30, 2016, four customers accounted for 73% and 72% of our revenue, respectively. At September 30, 2017, two customers accounted for 46% of our accounts receivable. For the three months ended September 30, 2017 and 2016, four suppliers accounted for 34% and 33% of our total purchases. For the nine months ended September 30, 2017 and 2016, six suppliers accounted for approximately 40% and 34% of our total purchases, respectively. As of September 30, 2017, two suppliers accounted for 24% of our accounts payable.

Concentrations

9 Months Ended

Sep. 30, 2017

11. Concentrations

For the three and nine months ended September 30, 2017, four customers accounted for 61% and 63% of our revenue, respectively. For the three and nine months ended September 30, 2016, four customers accounted for 73% and 72% of our revenue, respectively. At September 30, 2017, two customers accounted for 46% of our accounts receivable.

For the three months ended September 30, 2017 and 2016, four suppliers accounted for 34% and 33% of our total purchases. For the nine months ended September 30, 2017 and 2016, six suppliers accounted for approximately 40% and 34% of our total purchases, respectively. As of September 30, 2017, two suppliers accounted for 24% of our accounts payable.