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Property, Plant and Equipment, Net
 9 Months Ended
Sep. 30, 2023
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, Net Property, Plant and Equipment, Net
Property, plant and equipment consist of the following:
September 30,
2023		December 31,
2022
Land and land improvements$164 $164 
Buildings and building improvements2,629 2,592 
Furniture and fixtures503 457 
Equipment18,449 18,006 
Leasehold improvements4,324 4,333 
Breeding stock133 123 
Computer hardware and software3,682 4,562 
Construction and other assets in progress892 531 
30,776 30,768 
Less: Accumulated depreciation and amortization(23,661)(23,439)
Property, plant and equipment, net$7,115 $7,329 
Depreciation expense was $434 and $564 for the three months ended September 30, 2023 and 2022, respectively, and $1,415 and $1,833 for the nine months ended September 30, 2023 and 2022, respectively.