For the three months ended December 31, 2017, one customer represented 21% of net revenue, one customer represented 16% of net revenue, one customer represented 14% of net revenue and one customer represented 12% of net revenue. For the three months ended December 31, 2016, one customer represented 22%, one customer represented 16%, one customer represented 13% and one customer represented 10% of net revenue.

For the nine months ended December 31, 2017, one customer represented 21% of net revenue, one customer represented 16% of net revenue, one customer represented 13% of net revenue and one customer represented 12% of net revenue. For the nine months ended December 31, 2016, one customer represented 27% of net revenue. 

At December 31, 2017, one customer represented 36%, one customer represented 17%, and one customer represented 15% of the accounts receivable balance. At March 31, 2017, one customer represented 26%, one customer represented 12%, and one customer represented 10% of the accounts receivable balance.