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Balance Sheet Components (Acquired Intangible Assets, Net) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]    
Acquired intangible assets, gross $ 6,730 $ 6,730
Less: accumulated amortization (6,730) (6,640)
Acquired intangible assets, net 0 90
Amortization of acquired intangible assets 90  
Cost of revenue    
Finite-Lived Intangible Assets [Line Items]    
Amortization of acquired intangible assets 72  
Selling, general and administrative    
Finite-Lived Intangible Assets [Line Items]    
Amortization of acquired intangible assets 18 219
Developed technology    
Finite-Lived Intangible Assets [Line Items]    
Acquired intangible assets, gross 5,050 5,050
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Acquired intangible assets, gross 1,270 1,270
Backlog and tradename    
Finite-Lived Intangible Assets [Line Items]    
Acquired intangible assets, gross $ 410 $ 410