Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 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
	March 31,
	2019		2018
Research and development	$	649	$	313
General and administrative		1,177		778
Total	$	1,826	$	1,091

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
	March 31,
	2019		2018
Research and development	$	5	$	7
General and administrative		5		28
Total	$	10	$	35