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Property and Equipment, Net
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net Property and Equipment, Net
Property and equipment consist of the following:
December 31,
(in thousands)20212020
Laboratory equipment, computers and software$1,752 $1,736 
Leasehold improvements214 214 
Office furniture and equipment764 779 
2,730 2,729 
Less—Accumulated depreciation and amortization(2,225)(2,066)
Total$505 $663 
Depreciation and amortization expense related to property and equipment was $0.2 million, $0.1 million, and $0.1 million for the years ended December 31, 2021, 2020, and 2019, respectively.