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Patents and Other Intangible Assets - Additional information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Intangible assets        
Amortization expense $ 41 $ 43 $ 126 $ 123
Impairment       $ 17
Minimum        
Intangible assets        
Amortization life (in years) 3 years   3 years  
Maximum        
Intangible assets        
Amortization life (in years) 5 years   5 years  
Trademarks        
Intangible assets        
Amortization life (in years) 10 years   10 years