Summary of Significant Accounting Policies Significant Accounts receivable balances (Tables)

12 Months Ended

Dec. 31, 2013

Significant Accounts receivable balances [Abstract]

Significant Accounts Receivable [Table Text Block]

As of December 31, 2013 and 2012, the percentage of the Company's total accounts receivable balance that were due from the following significant customers is as follows (refer to Note 7 “Significant Customers” for a discussion of revenues generated from the Company's significant customers):

	December 31,
	2013	2012
Telvent Energia y Medioambiente SA	15.3%	46.1%
Enel Distribuzione Spa	14.3%	9.4%
Eltel Networks A/S	10.1%	1.3%
EBV Electronik GmbH / Avnet Europe Comm VA	8.6%	9.2%
Duke Energy Corporation	7.5%	—%
Total	55.8%	66.0%