Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

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 consolidated statements of operations for each period shown:

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(in thousands)		2015		2014		2015		2014
Cost of product revenue	$	4	$	-	$	8	$	-
Research and development expense		68		(127)		116		(13)
Sales, marketing, general and administrative expense		162		328		300		519
Total share-based compensation expense	$	234	$	201	$	424	$	506

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 June 30, 2015:

				Weighted-
			Weighted-	Average
			Average	Remaining		Aggregate
			Exercise	Contractual		Intrinsic
	Shares		Price	Term (years)		Value
Outstanding as of June 30, 2015	3,197,000	$	5.74	7.7	$	1,903,000
Exercisable as of June 30, 2015	1,422,000	$	9.70	5.9	$	916,000