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Convertible Notes - Current and Non-Current (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Convertible notes, current: $ 3,454 $ 4,222
Convertible notes, noncurrent: 3,909 8,284
Total convertible notes 7,363 12,506
July 2021 Convertible Notes    
Debt Instrument [Line Items]    
Convertible notes, noncurrent: 529 213
September 2021 Convertible Notes    
Debt Instrument [Line Items]    
Convertible notes, current: 3,405 4,160
Convertible notes, noncurrent: 3,356 7,947
Revesting Notes    
Debt Instrument [Line Items]    
Convertible notes, current: 49 62
Convertible notes, noncurrent: $ 24 $ 124