Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock-Based Compensation Expense

Total stock-based compensation expense was recognized in the condensed consolidated statements of operations and comprehensive loss as follows (in thousands):

	Three months ended September 30,				Nine months ended September 30,
	2019		2018		2019		2018
Research and development		978	$	638		2,693	$	1,679
General and administrative		1,762		410		3,851		1,141
Total stock-based compensation	$	2,740	$	1,048	$	6,544	$	2,820