Contract Receivables (Tables)

3 Months Ended

Mar. 31, 2015

Contract Receivables [Abstract]

Components of contract receivables

The components of contract receivables are as follows:

(in thousands)	March 31,			December 31,
	2015			2014
Billed receivables	$	8,427		$	10,792
Recoverable costs and accrued profit not billed		6,766			5,060
Allowance for doubtful accounts		(2	)		(22	)
Total contract receivables, net	$	15,191		$	15,830

Concentration Risk [Line Items]

Contract receivable by major customers

The following customer accounted for more than 10% of the Company's consolidated contract receivables as of December 31, 2014:

	March 31, 2015	December 31, 2014
State Nuclear Power Automation System Engineering Co.	7.0 %	10.2 %