Accrued Expenses

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

Accrued Expenses

(5) Accrued Expenses

Accrued expenses at December 31, 2021 and 2020 consist of the following:

	(in thousands) December 31,
	2021		2020
Compensation	$	1	$	2
Professional fees		169		124
Clinical trial expenses		61		—
Other expenses		207		316
	$	438	$	442