Contract Receivables

6 Months Ended

Jun. 30, 2015

Contract Receivables [Abstract]

Contract Receivables

5. Contract Receivables

Contract receivables represent balances due from a broad base of both domestic and international customers.  All contract receivables are considered to be collectible within twelve months. Recoverable costs and accrued profit not billed represent costs incurred and associated profit accrued on contracts that will become billable upon future milestones or completion of contracts.

The components of contract receivables are as follows:

(in thousands)	June 30,			December 31,
	2015			2014
Billed receivables	$	10,410		$	10,792
Recoverable costs and accrued profit not billed		5,554			5,060
Allowance for doubtful accounts		(2	)		(22	)
Total contract receivables, net	$	15,962		$	15,830

Recoverable costs and accrued profit not billed totaled $5.6 million and $5.1 million as of June 30, 2015 and December 31, 2014, respectively.  During July 2015, the Company invoiced $2.2 million of the unbilled amounts.

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

	June 30, 2015	December 31, 2014
China Nuclear Power Engineering Company	15.2 %	3.9 %
State Nuclear Power Automation System Engineering Co.	5.8 %	10.2 %