For the three months ended December 31, 2018 one customer represented 14% of net revenue. 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 nine months ended December 31, 2018, one customer represented 17% of net revenue 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.

At December 31, 2018, one customer represented 12% of the net accounts receivable balance. At March 31, 2018, one customer represented 36%, and one customer represented 18% of the net accounts receivable balance.