Credit Risk (Tables)

6 Months Ended

Jun. 30, 2012

Credit Risk [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts during the six months ended June 30, 2012(in thousands):

	Six months ended
	June 30, 2012
Balance at beginning of period	$	1,672
Charged to expense	14
Write-offs	(74		)
Foreign currency translation adjustment	(26		)
Balance at end of period	$	1,586