Contract Receivables (Tables)

9 Months Ended

Sep. 30, 2015

Contract Receivables [Abstract]

Components of contract receivables

The components of contract receivables are as follows:

(in thousands)	September 30,			December 31,
	2015			2014
Billed receivables	$	7,473		$	10,792
Recoverable costs and accrued profit not billed		4,769			5,060
Allowance for doubtful accounts		(2	)		(22	)
Total contract receivables, net	$	12,240		$	15,830

Concentration Risk [Line Items]

Contract receivable by major customers

The following customers accounted for more than 10% of the Company's consolidated contract receivables as of September 30, 2015 and December 31, 2014, respectively:

	September 30, 2015	December 31, 2014
China Nuclear Power Engineering Company	14.7 %	3.9 %
State Nuclear Power Automation System Engineering Co.	0.4 %	10.2 %