Significant Customers (Tables)

9 Months Ended

Sep. 30, 2016

Risks and Uncertainties [Abstract]

Revenues attributable to sales to major customers

For the three and nine months ended September 30, 2016 and 2015, 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,
	2016		2015		2016		2015
Avnet	27.5	%	21.1	%	28.1	%	25.5	%
Enel	—	%	16.8	%	5.3	%	11.9	%
Total	27.5	%	37.9	%	33.4	%	37.4	%