Accrued Liabilities

6 Months Ended

Jun. 30, 2018

Payables And Accruals [Abstract]

Accrued Liabilities

5. Accrued Liabilities

Accrued liabilities consist of the following:

	June 30, 2018		December 31, 2017
	(In thousands)
Accrued payroll and related expenses	$	497	$	394
Accrued research and development expenses		5,866		3,250
Deferred offering costs		—		238
Other		205		105
Total accrued liabilities	$	6,568	$	3,987