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Consolidated Balance Sheet Components - Other Current Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Participation units liability, current (Note 11) $ 2,027 $ 0
Current maturities of operating lease liability 615 953
Software license obligation, current 0 675
Current maturities of finance lease liability 0 129
Other 1,075 186
Total $ 3,717 $ 1,943