Contract Receivables

3 Months Ended

Mar. 31, 2017

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 yet 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)	March 31,			December 31,
	2017			2016
Billed receivables	$	5,971		$	13,325
Recoverable costs and accrued profit not yet billed		7,944			5,555
Allowance for doubtful accounts		(18	)		(17	)
Total contract receivables, net	$	13,897		$	18,863

During April 2017, the Company invoiced $1.6 million of the unbilled amounts related to the balance at March 31, 2017.

As of March 31, 2017, the Company had one customer that accounted for 21% of the Company's consolidated contract receivables.  As of December 31, 2016, the Company did not have any customers that accounted for more than 10% of the Company's consolidated contract receivables.