Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2019

Canceled/expired

Stock-based employee compensation expense

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

Share-based compensation expense		Three Months Ended				Nine Months Ended
		September 30,				September 30,
(in thousands)		2019		2018		2019		2018
Cost of product revenue	$	25	$	-	$	26	$	-
Research and development expense		84		109		283		377
Sales, marketing, general and administrative expense		149		73		568		344
	$	258	$	182	$	877	$	721

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, 2019:

				Weighted-
			Weighted-	Average
			Average	Remaining		Aggregate
			Exercise	Contractual		Intrinsic
Options	Shares		Price	Term (years)		Value
Outstanding as of September 30, 2019	5,206,000	$	1.65	7.7	$	-
Exercisable as of September 30, 2019	2,315,000	$	2.46	5.9	$	-