Accrued expenses (Tables)

6 Months Ended

Jun. 30, 2021

Accrued expenses

Schedule of accrued expenses

Accrued expenses consisted of the following:

(in thousands)	June 30, 2021		December 31, 2020
Deferred research obligations		486		—
Compensation and related benefits		653		845
Professional fees, contractors and other		548		527
	$	1,687	$	1,372