Stock-Based Compensation

3 Months Ended

Mar. 31, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation

10. Stock-Based Compensation

Stock-based compensation expense has been reported in the Company’s condensed statements of operations for the three months ended March 31, 2019 and 2018 as follows (in thousands):

	Three Months Ended March 31,
	2019		2018
General and administrative	$	192	$	28
Research and development		46		76
Total stock-based compensation	$	238	$	104

As of March 31, 2019, the total unrecognized compensation expense related to unvested employee and non-employee stock option awards was $3.4 million, which was expected to be recognized in expense over a weighted-average period of approximately 3.2 years.