Stock-Based Compensation

6 Months Ended

Jun. 30, 2019

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

STOCK-BASED COMPENSATION

We report our stock-based compensation expense (inclusive of our incentive stock plan, employee stock purchase plan, and 401(k) contribution matching program) in the accompanying Condensed Consolidated Statements of Operations, based on the assigned department of the recipient. Stock-based compensation expense, included within “total operating costs and expenses” for the three and six months ended June 30, 2019 and 2018, was as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Selling, general and administrative	$	3,675	$	2,531	$	7,326	$	4,784
Research and development	1,344		650		2,289		1,281
Total stock-based compensation	$	5,019	$	3,181	$	9,615	$	6,065