Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2016

Share-based Compensation Tables

Stock-based employee compensation expense

The following table shows the amount of share-based compensation expense included in each line item of the statements of operations:

		Three Months Ended
(in thousands)		March 31,
Share-based compensation expense		2016		2015
Cost of product revenue	$	10	$	4
Research and development expense		83		47
Sales, marketing, general and administrative expense		207		139
	$	300	$	190

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 March 31, 2016:

				Weighted-
			Weighted-	Average
			Average	Remaining		Aggregate
			Exercise	Contractual		Intrinsic
Options	Shares		Price	Term (years)		Value
Outstanding as of March 31, 2016	3,133,000	$	5.51	7.1	$	120,000
Exercisable as of March 31, 2016	1,580,000	$	8.37	5.6	$	65,000