Contract Receivables (Tables)

3 Months Ended

Mar. 31, 2013

Contract Receivables [Abstract]

Components of contract receivables

The following customers account for more than 10% of the Company’s consolidated contract receivables for the indicated periods:

	March 31,	December 31,
	2013	2012
Slovenské elektrárne, a.s.	24.4%	17.4%
Shandong Nuclear Power Co. Ltd.	11.4%	13.8%

Concentration Risk [Line Items]

Contract receivable by major customers

For the three months ended March 31, 2013 and 2012, the following customer has provided more than 10% of the Company's consolidated revenue:

	Three Months ended
	March 31,
	2013	2012
Slovenské elektrárne, a.s.	23.3%	8.0%