Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2018

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,
	2018		2017		2018		2017
Research and development	$	458	$	172	$	1,274	$	542
General and administrative		695		381		2,302		1,336
Total	$	1,153	$	553	$	3,576	$	1,878

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,
	2018		2017		2018		2017
Research and development	$	7	$	51	$	18	$	100
General and administrative		11		128		51		273
Total	$	18	$	179	$	69	$	373