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STOCK-BASED COMPENSATION

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement [Abstract]

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 plan (ESPP).

The following table reflects stock-based compensation expense recognized in the Company’s Condensed Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2020 and 2019 (in thousands):


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Cost of sales	$	18	$	50	$	41	$	50
Research and development expense	80		76		243		349
Selling, general and administrative expense	2,496		2,508		4,244		4,937
Restructuring charges	999		—		999		—
Total	$	3,593	$	2,634	$	5,527	$	5,336

The recognized tax benefit on total stock-based compensation expense during the three and six months ended June 30, 2020 and 2019 was $0.3 million and $0.8 million.

During the six months ended June 30, 2020 the Company granted 7.2 million RSUs at an average fair market value of $0.83 per share and 5.7 million options at an average fair market value of $0.50 per share, which includes 5.0 million in options granted as part of the Zyla Merger.