Goodwill And Other Intangible Assets (Tables)

9 Months Ended

Oct. 01, 2011

Goodwill And Other Intangible Assets [Abstract]

Amortized Intangible Assets

	As of October 1, 2011
	Gross Amount		Accumulated Amortization			Net Amount
Current technology	$	12,718	$	(11,300	)	$	1,418
Patent and patent rights		17,360		(11,389	)		5,971
Customer relationships		1,773		(1,721	)		52
Total	$	31,851	$	(24,410	)	$	7,441
Amortization expense for the nine months ended October 1, 2011			$	2,514

	As of December 31, 2010
	Gross Amount		Accumulated Amortization			Net Amount
Current technology	$	12,718	$	(10,863	)	$	1,855
Patent and patent rights		17,160		(9,351	)		7,809
Customer relationships		1,773		(1,682	)		91
Total	$	31,651	$	(21,896	)	$	9,755
Amortization expense for the nine months ended October 2, 2010			$	2,320