Accrued Expenses

9 Months Ended

Sep. 30, 2018

Accrued Expenses

Accrued Expenses

6. Accrued Expenses

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

	As of
	September 30,		December 31,
	2018		2017
Accrued payroll and related expenses	$	1,794	$	1,174
Accrued external research and development expense		1,163		1,225
Accrued professional and consulting expense		339		382
Accrued other		64		15
	$	3,360	$	2,796