Contract Receivables

12 Months Ended

Dec. 31, 2011

Contract Receivables [Abstract]

Contract Receivables

NOTE C—CONTRACT RECEIVABLES

Contract receivables consisted of the following at December 31:

	2011			2010
Billed	$	147,248		$	126,448
Unbilled		59,637			49,102
Retainages		2,477			2,331
Other		1,810			1,004
Allowance for doubtful accounts		(1,746	)		(1,922	)
Contract receivables, net	$	209,426		$	176,963

Contract receivables, net of the established allowance, are stated at amounts expected to be realized in future periods. Unbilled receivables result from revenue that has been earned in advance of billing. Unbilled receivables can be invoiced at contractually defined intervals or milestones, as well as upon completion of the contract or government audits. The Company anticipates that the majority of unbilled receivables will be substantially billed and collected within one year, and therefore, classifies them as current assets in accordance with industry practice.

The Company considers a number of factors in its estimate of allowance for doubtful accounts including the customer's financial condition, historical collection experience, and other factors that may bear on collectability of the receivables. The Company writes off contract receivables when such amounts are determined to be uncollectible. Losses have historically been within management's expectations.