Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment

Schedule of property, plant and equipment

	As of December 31
(in thousands)	2021		2020
IT equipment	$	1,083	$	1,077
Laboratory equipment		3,404		3,392
ROU asset		—		226
Other equipment		101		204
		4,588		4,899
Less: Accumulated depreciation		(4,355)		(4,131)
Property, plant and equipment, net	$	233	$	768