Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2020

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consisted of the following:

(in thousands)	September 30, 2020		December 31, 2019
Accrued employee compensation and benefits	$	3,968	2,916
Accrued external research and development expenses	3,086		1,977
Accrued professional fees	768		1,347
Accrued lease construction costs	207		—
Other	503		221
	$	8,532	$	6,461