Share-Based Payments (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Stock-Based Compensation Costs

Stock-based compensation costs included in the condensed consolidated statements of operations are presented below:

	Three Months Ended   September 30,				Nine Months Ended   September 30,
	2020		2019		2020		2019
Cost of products	$	1	$	4	$	7	$	16
Cost of services	35		52		99		169
Research and development	407		1,382		1,360		4,083
Selling, general and administrative	4,157		3,367		13,749		8,301
Discontinued operations	—		618		(1,346)		1,969
Total	$	4,600	$	5,423	$	13,869	$	14,538

Schedule of Stock Option Activity

Stock option activity was as follows:

	Number of Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)
Balances at December 31, 2019	9,022,282	$	21.94	6.10
Granted	5,560,748	10.13
Exercised	(21,669)	(3.17)
Forfeited	(941,298)	(15.57)
Expired	(2,240,458)	(26.86)
Balances at September 30, 2020	11,379,605	15.77		7.36
Exercisable at September 30, 2020	5,620,375	19.68		5.68

Schedule of Restricted Stock Unit Activity

RSU activity was as follows:

	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value		Weighted Average Remaining Contractual Term (Years)
Balances at December 31, 2019	1,781,982	$	8.71	1.24
Granted	3,157,390	3.09
Vested	(2,727,593)	(4.04)
Forfeited	(398,736)	(8.62)
Balances at September 30, 2020	1,813,043	5.96		0.65