Goodwill and Intangibles (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Change in the carrying amount of goodwill

The change in the carrying amount of goodwill during 2011 and 2012 was as follows (in thousands):

Balance at December 31, 2010	$	24,956
Foreign currency translation adjustments	(69		)
Balance at December 31, 2011	24,887
Foreign currency translation adjustments	529
Balance at December 31, 2012	$	25,416

Intangible assets subject to amortization

The composition of intangible assets subject to amortization at December 31, 2012 and 2011 was as follows (in thousands):

	Useful Life	Gross Carrying Value		Accumulated Amortization			Cumulative Foreign Currency Translation Adjustment			Net Carrying Value
As of December 31, 2012:
Patents	13 years	$	2,476	$	(1,903	)	$	—		$	573
Developed core technology	10 years	1,100		(1,100		)	—			—
Patent license agreement	5 years	741		(606		)	(39		)	96
Total intangible assets at December 31, 2012		$	4,317	$	(3,609	)	$	(39	)	$	669
As of December 31, 2011:
Patents	13 years	$	2,476	$	(1,699	)	$	—		$	777
Developed core technology	10 years	1,100		(1,050		)	29			79
Patent license agreement	5 years	741		(468		)	(18		)	255
Total intangible assets at December 31, 2011		$	4,317	$	(3,217	)	$	11		$	1,111

Estimated amortization expense for each of the next three years

The estimated amortization for each of the next three years ending December 31 is as follows (in thousands):

Fiscal Years
2013	$	300
2014	203
2015	166
	$	669