Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Share-based Compensation Tables

Stock-based employee compensation expense

The following table summarizes the amount of share-based compensation expense by line item in the statements of operations:

Share-based compensation expense		Three Months Ended				Nine Months Ended
		September 30,				September 30,
(in thousands)		2016		2015		2016		2015
Cost of product revenue	$	9	$	7	$	29	$	15
Research and development expense		98		82		283		198
Sales, marketing, general and administrative expense		199		205		668		505
	$	306	$	294	$	980	$	718

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, 2016:

				Weighted-
			Weighted-	Average
			Average	Remaining		Aggregate
			Exercise	Contractual		Intrinsic
Options	Shares		Price	Term (years)		Value
Outstanding as of September 30, 2016	4,087,000	$	3.92	7.6	$	5,000
Exercisable as of September 30, 2016	2,040,000	$	5.60	6.1	$	4,000