Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Allowance for Doubtful Accounts

For the years ended December 31, 2013, 2012 and 2011, the allowance for doubtful accounts was as follows (in thousands):

	2013			2012			2011
Balance at beginning of year	$	374		$	337		$	499
Provision (benefit) charged to selling, general and administrative expense		325			185			(61	)
Allowance resulting from acquisition		117			—			—
Write-offs, net of recoveries of amounts previously reserved		(187	)		(162	)		(102	)
Exchange rate changes		22			14			1
Balance at end of year	$	651		$	374		$	337

Laser Quantum

Summary of Financial Information of Laser Quantum - Income Statement

The summarized financial information for Laser Quantum is as follows (in thousands):

	Year Ended December 31,
	2013		2012		2011
Sales	$	16,269	$	13,039	$	18,384
Income from operations	$	4,720	$	3,592	$	3,994
Net income	$	3,745	$	2,215	$	4,684

Summary of Financial Information of Laser Quantum - Balance Sheet

	2013		2012
Total assets	$	20,990	$	21,596
Total liabilities	$	4,240	$	5,330