Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Stock options

Schedule of total compensation cost recognized in the statement of operations

Total compensation cost recognized for all stock option awards in the statements of operations is as follows (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Research and development	$	678	$	611	$	1,407	$	1,260
General and administrative		1,114		642		2,260		1,819
Total	$	1,792	$	1,253	$	3,667	$	3,079

Restricted stock

Schedule of total compensation cost recognized in the statement of operations

Total compensation cost recognized for all restricted stock awards in the statements of operations is as follows (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Research and development	$	—	$	5	$	—	$	10
General and administrative		4		5		5		10
Total	$	4	$	10	$	5	$	20