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Property and Equipment, Net
 6 Months Ended
Jun. 30, 2021
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net Property and Equipment, Net
Property and equipment, net consisted of the following (in thousands):
June 30,December 31,
20212020
Lab equipment$227 $130 
Office equipment322 260 
Furniture and fixtures38 37 
Leasehold improvements6 6 
593 433 
Less: accumulated depreciation(267)(188)
$326 $245 
Depreciation and amortization expense were less than $0.1 million and $0.1 million for the three months and six months ended June 30, 2021, respectively. Depreciation and amortization expense were less than $0.1 million and $0.1 million for the three months and six months ended June 30, 2020, respectively.