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Income Taxes - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Tax Examination [Line Items]    
Loss before taxes $ 53,948 $ 22,197
Net loss 53,522 22,199
Net operating loss carryforwards federal 166,826  
Net operating loss carryforwards state 79,463  
Federal net operating losses subject to expiration 85,674  
Federal net operating losses not subject to expiration 81,152  
R&D credit carryforwards federal 1,863  
R&D credit carryforwards state 1,226  
Valuation allowance 46,163 35,100
United States    
Income Tax Examination [Line Items]    
Net loss $ 54,907 $ 22,194