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Intangible Assets, Net - Future Amortization of Patents and License Agreements (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Intangible assets    
Net Carrying Amount $ 3,881 $ 3,258
Patents And License Agreements    
Intangible assets    
2023 (excluding the nine months ended September 30, 2023) 56  
2024 223  
2025 223  
2026 221  
2027 218  
Thereafter 2,940  
Net Carrying Amount $ 3,881