STOCKHOLDERS' EQUITY Share-Based Compensation (Notes)

9 Months Ended

Sep. 30, 2019

STOCKHOLDERS’ EQUITY

Stock-Based Compensation

Information with respect to option shares granted under all of our stock incentive plans for the nine months ended September 30, 2019 was as follows:



	Time-Based Shares		Performance-Based Shares	Total Shares		Weighted- Average Exercise Price	Weighted- Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in thousands)
Options outstanding at January 1, 2019	891,892		—	891,892		$8.46
Granted	—		—	—		$—
Exercised	(66,506	)	—	(66,506	)	$7.39
Forfeited or canceled	(231,886	)	—	(231,886	)	$10.96
Options outstanding at September 30, 2019	593,500		—	593,500		$7.60	1.37	$—
Options vested at September 30, 2019 or expected to vest				593,500		$7.60	1.37	$—
Options exercisable at September 30, 2019				593,500		$7.60	1.37	$—

Information with respect to our non-vested restricted stock units for the nine months ended September 30, 2019 was as follows:



	Non-Vested Restricted Stock Units
	Time-Based Shares		Performance-Based Shares		Total Shares		Weighted- Average Grant-Date Fair Value	Weighted- Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in thousands)
Non-vested at January 1, 2019	1,978,676		966,143		2,944,819		$4.91
Granted	1,212,076		411,043		1,623,119		$7.33
Vested	(830,949	)	(666,451	)	(1,497,400	)	$4.85
Forfeited	(214,710	)	(156,470	)	(371,180	)	$5.39
Non-vested at September 30, 2019	2,145,093		554,265		2,699,358		$6.33	1.12	$16,682
Expected to vest					2,699,358		$6.33	1.12	$16,682

Stock-based compensation was included in the following captions in our condensed consolidated statements of operations for the three and nine months ended September 30, 2019 and 2018 (in thousands):



	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Cost of products revenues	$	103	$	40	$	244	$	83
Cost of services revenues	82		55		177		139
Research and development expenses	305		236		762		439
Marketing and selling expenses	532		419		1,276		1,152
General and administrative expenses	1,023		1,326		3,329		2,518
	$	2,045	$	2,076	$	5,788	$	4,331