Basis of Presentation and Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2014

Basis of Presentation and Revenue Recognition [Abstract]

Percentage of revenue by major customers

For the three and six months ended June 30, 2014 and 2013, the following customer provided more than 10% of the Company's consolidated revenue:

	Three Months ended June 30,		Six Months ended June 30,
	2014	2013	2014	2013
Slovenské elektrárne, a.s.	0.6%	22.4%	4.5%	22.9%