Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2017

Stock option

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,
	2017		2016		2017		2016
Research and development	$	172	$	265	$	542	$	710
General and administrative		381		487		1,336		1,518
Total	$	553	$	752	$	1,878	$	2,228

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,
	2017		2016		2017		2016
Research and development	$	51	$	19	$	100	$	19
General and administrative		128		29		273		29
Total	$	179	$	48	$	373	$	48