Significant Customers (Tables)

3 Months Ended

Mar. 31, 2017

Risks and Uncertainties [Abstract]

Revenues attributable to sales to major customers

For the three months ended March 31, 2017 and 2016, the percentage of the Company’s revenues attributable to sales made to these customers was as follows:

	Three Months Ended
	March 31,
	2017		2016
Avnet	29.6	%	26.8	%
Enel	—	%	15.2	%
Total	29.6	%	42.0	%