Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Share-Based Compensation Tables

Stock-based employee compensation expense

The following table shows the amount of stock-based employee compensation expense included in the consolidated statements of operations:

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2012		2011		2012		2011
Cost of contract revenue	$	15,000	$	56,000	$	25,000	$	97,000
Cost of product revenue		20,000		60,000		40,000		100,000
Research and development expense		389,000		337,000		613,000		1,075,000
Sales, marketing, general and administrative expense		432,000		447,000		1,019,000		1,337,000
Total share-based employee compensation expense	$	856,000	$	900,000	$	1,697,000	$	2,609,000

Options activity and positions

Options Activity and Positions

The following table summarizes shares, weighted average exercise price, weighted average remaining contractual term and aggregate intrinsic value of options outstanding and options exercisable as of September 30, 2012:

				Weighted
				Average
			Weighted	Remaining
			Average	Contractual		Aggregate
			Exercise	Term		Intrinsic
Options	Shares		Price	(years)		Value
Outstanding as of September 30, 2012	1,306,000	$	14.15	7.2	$	268,000
Exercisable as of September 30, 2012	787,000	$	20.61	5.7	$	86,000