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Concentrations, Significant Customers and Geographic Areas - Summary of Revenue by Geography (Detail) - Revenue - Revenue from Rights Concentration Risk - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Concentration Risk [Line Items]        
Total revenue $ 2,378 $ 3,105 $ 8,516 $ 8,632
United States        
Concentration Risk [Line Items]        
Total revenue 1,548 2,927 5,688 8,174
Europe        
Concentration Risk [Line Items]        
Total revenue 767 $ 178 2,241 $ 458
Asia        
Concentration Risk [Line Items]        
Total revenue $ 63   $ 587