Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2019

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consisted of the following

(in thousands)	September 30, 2019		December 31, 2018
Accrued employee compensation and benefits	$	2,204	924
Accrued external research and development expenses	2,195		754
Accrued professional fees	853		1,324
Other	445		249
	$	5,697	$	3,251