Revenue and Accounts Receivable

12 Months Ended

Dec. 31, 2011

Revenue and Accounts Receivable [Abstract]

Revenue and Accounts Receivable

Note 6.    Revenue and Accounts Receivable

Revenue resulting from contracts and subcontracts with the U.S. Government accounted for 99.1%, 97.4%, and 98.6% of consolidated revenue in 2011, 2010, and 2009, respectively.  As our primary customer base includes agencies of the U.S. Government, we have a concentration of credit risk associated with our accounts receivable, as 98.3% of our billed accounts receivable were directly with U.S. Government customers. While we acknowledge the potentially material and adverse risk of such a significant concentration of credit risk, our past experience of collecting substantially all of such receivables provide us with an informed basis that such risk, if any, is manageable.  We perform ongoing credit evaluations of all of our customers and generally do not require collateral or other guarantee from our customers.  We maintain allowances for potential losses.

The components of accounts receivable are as follows (in thousands):

	December 31,
	2011			2010
Billed accounts receivable	$	26,299		$	41,422
Amounts currently billable		11,022			13,021
Allowance for doubtful accounts		(375	)		(358	)
	$	36,946		$	54,085

The activities in the allowance for doubtful accounts are set forth below (in thousands):

	Balance Beginning of Year		Bad Debt Expenses (1)			Deductions (2)			Balance End of Year
Year ended December 31, 2011	$	358	$	17		$	----		$	375
Year ended December 31, 2010	$	363	$	(3	)	$	(2	)	$	358
Year ended December 31, 2009	$	225	$	138		$	----		$	363

(1) Accounts receivable reserves and reversal of allowance for subsequent collections, net

(2) Accounts receivable written-off and subsequent recoveries, net

Revenue by Major Market and Significant Customers

We derived substantially all of our revenues from contracts and subcontracts with the U.S. Government.  Revenue by customer sector for the last three fiscal years is as follows:

	2011				2010				2009
					(dollar amounts in thousands)
Federal	$	188,162	99.1	%	$	220,017	97.4	%	$	271,862	98.6	%
Commercial		1,726	0.9	%		5,780	2.6	%		3,819	1.4	%
Total	$	189,888	100.0	%	$	225,797	100.0	%	$	275,681	100.0	%