Significant Customers (Tables)

9 Months Ended

Sep. 30, 2017

Risks and Uncertainties [Abstract]

Revenues attributable to sales to major customers

For the three and nine months ended September 30, 2017 and 2016, the percentage of the Company’s revenues attributable to sales made to these customers was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Avnet	29.0	%	27.5	%	29.1	%	28.1	%
Enel	—	%	—	%	—	%	5.3	%
Total	29.0	%	27.5	%	29.1	%	33.4	%