Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2021

Accrued Expenses [Abstract]

Accrued Expenses

Accrued expenses consist of the following at December 31:

	2021		2020
	(in thousands)
Legal and accounting fees	$	68	$	122
Accrued compensation		728		789
Lease liability		8		44
Accrued research and development costs and other		6,359		3,087
Total	$	7,163	$	4,042