Accrued Expenses and Other Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Payables And Accruals [Abstract]

Schedule of Accrued Expenses and Other Liabilities

Accrued expenses and other liabilities consist of the following:

	December 31,
	2018		2017
	(in thousands)
Accrued compensation and benefits	$	3,370	$	1,435
Accrued research and development expenses		1,059		182
Accrued professional fees		195		1,120
Accrued unvested common stock subject to repurchase		112		123
Accrued other		304		—
Total accrued expenses and other liabilities	$	5,040	$	2,860