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, net consisted of the following (in thousands):
December 31,
20212020
Laboratory equipment$4,889 $3,740 
Furniture and fixtures815 815 
Computer equipment and software100 100 
Leasehold improvements17,059 16,961 
Assets not yet placed in service30 15 
22,893 21,631 
Less: Accumulated depreciation and amortization(5,330)(2,103)
$17,563 $19,528 
Depreciation and amortization expense was $3.2 million and $1.3 million for the years ended December 31, 2021 and 2020, respectively.