Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Allowance for Doubtful Accounts

For the years ended December 31, 2012, 2011 and 2010, the allowance for doubtful accounts was as follows (in thousands):

	2012			2011			2010
Balance at beginning of year	$	337		$	499		$	1,578
Provision (benefit) charged to selling, general and administrative expense		185			(61	)		(535	)
Write-offs, net of recoveries of amounts previously reserved		(162	)		(102	)		(494	)
Exchange rate changes		14			1			(50	)
Balance at end of year	$	374		$	337		$	499