Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2012

Intangible Assets [Abstract]

Schedule Of Intangible Assets

	September 30, 2012						December 31, 2011
(In thousands)	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Developed technology	$	7,775	$	(7,775)	$	—	$	7,775	$	(7,775)	$	—
Patents		2,829		(2,621)		208		2,734		(2,504)		230
	$	10,604	$	(10,396)	$	208	$	10,509	$	(10,279)	$	230

Schedule Of Amortization Expense For Intangible Assets

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2012		2011		2012		2011
Developed technology	$	—	$	18	$	—	$	108
Patents		39		47		117		157
	$	39	$	65	$	117	$	265