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Supplementary Balance Sheet Information - Intangible Assets, Excluding Goodwill (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Finite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization, Net Carrying Value $ 5,243  
Intangible assets, Cost 18,940 $ 18,957
Intangible assets, Accumulated Amortization (13,580) (13,083)
Intangible assets, Net Carrying Value 5,360 5,874
Trademarks    
Finite Lived Intangible Assets [Line Items]    
Intangible assets not subject to amortization, Cost 117 117
Intangible assets not subject to amortization, Net Carrying Value 117 117
Patents    
Finite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization, Cost 1,923 1,940
Intangible assets subject to amortization, Accumulated Amortization (905) (877)
Intangible assets subject to amortization, Net Carrying Value 1,018 1,063
Purchased Technology    
Finite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization, Cost 16,900 16,900
Intangible assets subject to amortization, Accumulated Amortization (12,675) (12,206)
Intangible assets subject to amortization, Net Carrying Value $ 4,225 $ 4,694