STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of stock-based compensation expense

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 ended September 30, 2020 and 2019 (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Cost of sales	$	2	$	28	$	43	$	78
Research and development expense	18		165		261		514
Selling, general and administrative expense	1,491		2,811		5,735		7,748
Restructuring charges	—		—		999		—
Total	$	1,511	$	3,004	$	7,038	$	8,340