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Property, Plant and Equipment, net
 12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, net
Note G – Property, Plant and Equipment, net
Property, plant and equipment, net were as follows:
 December 31, 2024December 31, 2023
United StatesEuropeTotalUnited StatesEuropeTotal
Computer equipment
$2,690 $695 $3,385 $1,755 $559 $2,314 
Furniture and fixtures
1,409 36 1,445 1,181 39 1,220 
Laboratory equipment
6,879 728 7,607 5,086 594 5,680 
Leasehold improvements
2,576 4,410 6,986 2,764 4,683 7,447 
Vehicles
81 — 81 — — — 
Finance lease ROU assets— 2,313 2,313 — 2,004 2,004 
Construction in process5,648 — 5,648 3,782 — 3,782 
Property, plant and equipment, gross19,283 8,182 27,465 14,568 7,879 22,447 
Less: accumulated depreciation
(6,147)(3,481)(9,628)(4,631)(1,907)(6,538)
Total property, plant and equipment, net$13,136 $4,701 $17,837 $9,937 $5,972 $15,909 

There was no impairment recognized related to property, plant and equipment during the year ended December 31, 2024 and 2023, respectively.

The table below presents the depreciation expense related to property, plant and equipment for the following periods:
Year Ended
 December 31, 2024December 31, 2023
Depreciation expense
$4,067 $3,512