STOCKHOLDERS' EQUITY (Notes)

6 Months Ended

Jun. 30, 2022

Share-based Payment Arrangement [Abstract]

STOCKHOLDERS’ EQUITY

Stock-Based Compensation

Information with respect to the Company’s non-vested restricted stock units for the six months ended June 30, 2022 was as follows:



	Number of Restricted Stock Units	Weighted- Average Grant-Date Fair Value	Weighted- Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in thousands)	Shares Retained to Cover Statutory Minimum Withholding Taxes
Non-vested at January 1, 2022	1,061,834	$16.60			—
Granted	494,915	32.91			—
Vested	(474,173)	15.40			(170,334)
Forfeited	(108,828)	18.01			—
Outstanding at June 30, 2022	973,748	$25.31	1.09	$25,259

Information with respect to the Company’s non-vested performance-based restricted stock units for the six months ended June 30, 2022 was as follows:



	Number of Performance-based Restricted Stock Units	Weighted- Average Grant-Date Fair Value	Weighted- Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in thousands)	Shares Retained to Cover Statutory Minimum Withholding Taxes
Non-vested at January 1, 2022	579,364	$13.20			—
Granted	296,405	22.69			—
Vested	(454,804)	10.19			(200,208)
Forfeited	(64,964)	24.72			—
Non-vested at June 30, 2022	356,001	$22.85	1.2	$9,235

The following table sets forth stock-based compensation expense by award type for the three and six months ended June 30, 2022 and 2021 (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Share-based compensation expense by type:

Time-based Restricted Stock Units	$	2,952	$	2,584	$	5,380	$	5,021
Performance-based Restricted Stock Units	643		966		1,591		1,622
ESPP	50		30		96		59
Total share-based compensation expense	$	3,645	$	3,580	$	7,067	$	6,702

Stock-based compensation was included in the following captions in the Company’s condensed consolidated statements of operations for the three and six months ended June 30, 2022 and 2021 (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Cost of revenues	$	589	$	478	$	1,015	$	918
Research and development expenses	515		409		865		930
Marketing and selling expenses	800		617		1,398		1,219
General and administrative expenses	1,741		2,076		3,789		3,635
Total share-based compensation expense	$	3,645	$	3,580	$	7,067	$	6,702