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The Company and Summary of Significant Accounting Policies - Warranty Liability (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Warranty liability    
Beginning Balance $ 364 $ 406
Provision for warranties issued 123 234
Warranty services provided (125) (183)
Ending Balance $ 362 $ 457