Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2020

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consist of the following (in thousands):

	September 30,		December 31,
	2020		2019
Payroll and employee related expenses	$	2,279	$	2,235
Collaboration and licensing	1,350		1,050
Accrued patent fees	490		487
Accrued external research and development costs	5,799		4,379
Accrued professional and consulting services	1,056		468
Accrued interest	165		82
Issuance costs, December 2019 financing	—		4,381
Other	146		410
Accrued expenses	$	11,285	$	13,492