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Balance Sheet Components - Schedule of Estimated Future Annual Amortization Expense Related to Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]    
2021 (remaining three months) $ 166  
2022 664  
2023 618  
2024 442  
2025 386  
Thereafter 846  
Net $ 3,122 $ 2,208