Contract Receivables (Tables)

3 Months Ended

Mar. 31, 2014

Contract Receivables [Abstract]

Components of contract receivables

The components of contract receivables are as follows:

(in thousands)	March 31,			December 31,
	2014			2013
Billed receivables	$	6,789		$	19,040
Recoverable costs and accrued profit not billed		7,737			5,519
Allowance for doubtful accounts		(2	)		(2	)
Total contract receivables, net	$	14,524		$	24,557

Concentration Risk [Line Items]

Contract receivable by major customers

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

	March 31, 2014	December 31, 2013
China Nuclear Power Engineering Company	11.7%	4.9%
Slovenské elektrárne, a.s.	9.9%	35.9%