Concentration of Credit Risk (Tables)

3 Months Ended

Mar. 31, 2019

Risks And Uncertainties [Abstract]

Schedule of Concentration of Sales and Accounts Receivable

The following represents customers that accounted for 10% or more of total revenue during the three months ended March 31, 2019 and 2018 and customers that accounted for 10% or more of total trade accounts receivable at March 31, 2019 and 2018.

	Three Months Ended March 31,
	2019		2018
Percentage of net revenue
Customer A	42%		30%
Customer B		10		8
	As of March 31,
	2019		2018
Percentage of gross trade accounts receivable
Customer A	43%		22%
Customer B		11		6
Customer C		0		11

Schedule of Revenue by Geographic area

Net revenue by geographic area are as follows. Revenue is attributed by geographic location based on the bill-to location of the Company’s customers.

	Three Months Ended March 31,
	2019		2018
Percentage of net revenue
China	71%		64%
Other Asia		7		8
North America		19		22
Europe		3		6