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The Company and Summary of Significant Accounting Policies - Accrued Warranty (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Movement in accrued warranty    
Balance January 1, $ 406 $ 145
Provision for warranties issued during the quarter 41  
Warranty services provided (106) (36)
Balance December 31, $ 341 $ 109