Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2020

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consisted of the following

(in thousands)	March 31, 2020		December 31, 2019
Accrued employee compensation and benefits	$	2,289	2,916
Accrued external research and development expenses	1,287		1,977
Accrued professional fees	1,160		1,347
Accrued lease construction costs	682		—
Other	368		221
	$	5,786	$	6,461