Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

Stock-Based Compensation [Abstract]

Schedule Of Stock Based Compensation Expense Recognized

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Cost of sales	$	8	$	14	$	22	$	33
Research and development expense		149		156		346		311
Selling, general and administrative expense		1,026		995		2,173		1,523
Total	$	1,183	$	1,165	$	2,541	$	1,867