Stock-Based Compensation

6 Months Ended

Jun. 30, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation

5. Stock-Based Compensation

The Company’s 2011 Stock Incentive Plan (the “2011 Plan”) is administered by the Company’s Board of Directors and permits the Company to grant incentive and non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units and other stock-based awards.

There were no options granted during the three and six months ended June 30, 2020. At June 30, 2020, there were 1.5 million shares remaining available for grant under the 2011 Plan.

The Company recognized stock-based compensation expense during the three and six months ended June 30, 2020 and 2019 as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2020		2019		2020		2019
Research and development expense	$	—	$	40	$	—	$	223
General and administrative expense		464		447		948		858
Total stock-based compensation expense	$	464	$	487	$	948	$	1,081