STOCKHOLDERS' EQUITY Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2020

Share-based Payment Arrangement, Option, Activity [Table Text Block]

Information with respect to option shares granted under all of our stock incentive plans for the three months ended March 31, 2020 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, 2020	565,000		—	565,000		$7.57
Granted	—		—	—		$—
Exercised	(100,000	)	—	(100,000	)	$7.66
Forfeited or canceled	—		—	—		$—
Options outstanding at March 31, 2020	465,000		—	465,000		$7.56	1.17	$—
Options vested at March 31, 2020 or expected to vest				465,000		$7.56	1.17	$—
Options exercisable at March 31, 2020				465,000		$7.56	1.17	$—

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

Information with respect to our non-vested restricted stock units for the three months ended March 31, 2020 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, 2020	2,087,933		554,265		2,642,198		$6.40
Granted	555,523		578,316		1,133,839		$6.46
Vested	(333,743	)	(328,673	)	(662,416	)	$5.58
Forfeited	(44,750	)	—		(44,750	)	$7.54
Non-vested at March 31, 2020	2,264,963		803,908		3,068,871		$6.58	1.25	$20,623
Expected to vest					3,068,871		$6.58	1.25	$20,623

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

Stock-based compensation was included in the following captions in our condensed consolidated statements of operations for the three months ended March 31, 2020 and 2019 (in thousands):

	Three Months Ended March 31,
	2020		2019
Cost of products revenues	$	102	$	51
Cost of services revenues	98		18
Research and development expenses	294		195
Marketing and selling expenses	441		294
General and administrative expenses	1,174		1,180
	$	2,109	$	1,738