Accrued Expenses

9 Months Ended

Sep. 30, 2019

Payables And Accruals [Abstract]

Accrued Expenses

3. Accrued Expenses

Accrued expenses consist of the following (in thousands):  

	As of
	September 30,		December 31,
	2019		2018
Payroll and employee-related costs	$	8,174	$	7,321
Research costs		9,853		7,973
Licensing fees		26		625
Professional fees		2,537		1,848
Intellectual property costs		1,739		2,193
Accrued property and equipment		53		294
Other		15		598
Total	$	22,397	$	20,852