Concentrations of Credit and Other Risks (Tables)

12 Months Ended

Dec. 31, 2019

Risks and Uncertainties [Abstract]

Schedule of Concentration of Credit

The following customers accounted for 10% or more of our revenues for the periods presented:

	Year Ended December 31,
	2019	2018	2017
Quick Laser Technology Co., Ltd.	11%	13%	14%
Raytheon Company	13%	*	*

*Represents less than 10% of total revenues.