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Balance Sheet Components (Schedule Of Amortization Of Intangible Assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Balance Sheet Components [Abstract]    
2022 $ 665  
2023 665  
2024 665  
2025 665  
2026 556  
Intangible assets, net $ 3,216 $ 3,882