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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, net consist of the following (in thousands):
December 31, 2021
CostAccumulated AmortizationNet Book Value
Laboratory equipment$6,237 $1,006 $5,231 
Furniture, fixtures, and IT equipment1,850 629 1,221 
$8,087 $1,635 $6,452 
December 31, 2020
CostAccumulated AmortizationNet Book Value
Laboratory equipment$3,402 $426 $2,976 
Furniture, fixtures, and IT equipment753 159 594 
$4,155 $585 $3,570 
Depreciation expense on property and equipment totaled $1.1 million and $0.6 million for the years ended December 31, 2021 and 2020, respectively.