Significant Customers (Tables)

3 Months Ended

Mar. 31, 2014

Risks and Uncertainties [Abstract]

Revenues attributable to sales to major customers

For the three months ended March 31, 2014 and 2013, the percentage of the Company’s revenues attributable to sales made to these customers was as follows:

		Three Months Ended
	Segment	March 31,
		2014		2013
Avnet	IIoT	16.9	%	12.7	%
Enel	IIoT	8.7	%	7.5	%
Ubitronix	Grid	8.3	%	12.7	%
Duke	Grid	6.9	%	9.3	%
Telvent	Grid	4.5	%	22.0	%
Total		45.3	%	64.2	%