STOCK-BASED COMPENSATION

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION

The Company’s stock-based compensation generally includes stock options, restricted stock units (RSUs), performance share units (PSUs), and purchases under the Company’s employee stock purchase program (ESPP).

The following table reflects stock-based compensation expense recognized in the Company’s Condensed Consolidated Statements of Comprehensive Income for the three and nine months September 30, 2021 and 2020 (in thousands).

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Cost of sales	$	—	$	2	$	—	$	43
Research and development expense	—		18		—		261
Selling, general and administrative expense	866		1,491		2,596		5,735
Restructuring charges	—		—		—		999
Total	$	866	$	1,511	$	2,596	7,038

During the nine months ended September 30, 2021 the Company granted 1.7 million RSUs at an average fair market value of $3.54 per share.