Stockholders' Equity (Tables)

6 Months Ended

Jun. 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				Six Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Research and development	$	175	$	213	$	370	$	446
General and administrative		489		525		955		1,030
Total	$	664	$	738	$	1,325	$	1,476

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,
	2017		2016		2017		2016
Research and development	$	31	$	—	$	49	$	—
General and administrative		77		—		145		—
Total	$	108	$	—	$	194	$	—