RECEIVABLES

12 Months Ended

Dec. 31, 2012

RECEIVABLES

RECEIVABLES

NOTE 6. RECEIVABLES

Receivables as of December 31, 2012 and 2011 consisted of the following:

$s in thousands	2012			2011
Trade	$	32,787		$	27,229
Unbilled revenue		1,529			1,500
Other		99			1,400
Total receivables		34,415			30,129
Allowance for doubtful accounts		(468	)		(311	)
Receivables, net	$	33,947		$	29,818

The allowance for doubtful accounts is a provision for uncollectible accounts receivable and unbilled receivables. The allowance is evaluated and adjusted to reflect our collection history and an analysis of the accounts receivables aging. The allowance is decreased by accounts receivable as they are written off. The allowance is adjusted periodically to reflect actual experience. The change in the allowance during 2012, 2011 and 2010 was as follows:

$s in thousands	Balance at Beginning of Period		Charged (Credited) to Costs and Expenses		Recoveries (Deductions/ Write-offs)			Adjustments			Balance at End of Period
Year ended December 31, 2012	$	311	$	137	$	17		$	3		$	468
Year ended December 31, 2011	$	338	$	153	$	(179	)	$	(1	)	$	311
Year ended December 31, 2010	$	121	$	168	$	(24	)	$	73		$	338