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Property and Equipment, Net
 6 Months Ended
Jun. 30, 2024
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,
2024		December 31,
2023
Scientific and manufacturing equipment$28,552 $28,400 
Computer equipment125 125 
Software1,032 682 
Furniture and fixtures1,066 1,066 
Leasehold improvements27,858 27,844 
Construction in progress43 — 
58,676 58,117 
Accumulated depreciation(33,856)(31,326)
Property and equipment, net$24,820 $26,791 
Depreciation expense totaled $1.3 million and $2.5 million for the three and six months ended June 30, 2024, respectively, and $1.5 million and $3.0 million for the three and six months ended June 30, 2023, respectively. All long-lived assets are maintained in the United States.