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Property and Equipment, net
 6 Months Ended
Jun. 30, 2025
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,
 20252024
Lab equipment$— $3,382 
Leasehold improvements4,168 4,168 
Office equipment and furniture1,277 1,280 
Computer equipment143 143 
Subtotal5,588 8,973 
Accumulated depreciation and amortization(2,501)(4,274)
Property and equipment, net$3,087 $4,699 
Depreciation and amortization expense for the three months ended June 30, 2025 and 2024 was approximately $160 thousand and $327 thousand, respectively. Depreciation and amortization expense for the six months ended June 30, 2025 and 2024 was $422 thousand and $651 thousand, respectively.
During the six months ended June 30, 2025, management determined that changes in circumstances indicated the carrying value of certain research and development equipment may not be recoverable and recorded an impairment charge of $1.2 million, which is reported in the Research and development expense line item of the condensed consolidated statement of operations.