Concentration of Credit Risk and Significant Customers (Tables)

6 Months Ended

Jun. 30, 2020

Risks and Uncertainties [Abstract]

Schedules of concentration of risk, by risk factor

Significant customers are those that represent 10% or more of revenue or accounts receivable and are set forth in the following table:

	Revenue for the Six Months Ended June 30,		Accounts Receivable As of
	2020	2019	June 30, 2020	December 31, 2019
Customer A	*	15.9%	*	*
Customer B	*	14.2%	*	*
Customer C	78.2%	11.3%	51.2%	60.0%
Customer D	16.8%	43.1%	27.4%	20.4%

* Less than 10% of total