Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2019

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				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Research and development	$	689	$	458	$	1,949	$	1,274
General and administrative		640		695		2,459		2,302
Total	$	1,329	$	1,153	$	4,408	$	3,576

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				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Research and development	$	5	$	7	$	15	$	18
General and administrative		5		11		15		51
Total	$	10	$	18	$	30	$	69