Accrued Expenses

6 Months Ended

Jun. 30, 2018

Accrued Expenses

Accrued Expenses

6. Accrued Expenses

As of June 30, 2018 and December 31, 2017, accrued expenses consist of the following (in thousands):

	As of
	June 30,		December 31,
	2018		2017
Accrued external research and development expense	$	1,411	$	1,225
Accrued payroll and related expenses		1,260		1,174
Accrued professional and consulting expense		631		382
Accrued other		54		15
	$	3,356	$	2,796