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Leases - Narrative (Details)
$ in Millions
1 Months Ended 3 Months Ended
Feb. 28, 2018
USD ($)
ft²
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Lessee, Lease, Description [Line Items]      
Period of base rent abatement 2 months    
Base rent abated amount $ 0.2    
Lease costs   $ 0.6 $ 0.6
Variable lease payments   0.1 0.2
Operating lease payments   $ 0.6 0.6
California      
Lessee, Lease, Description [Line Items]      
Leased premises under non cancelable operating lease | ft² 32,974    
Lease term 84 months    
Lease term extension period   7 years  
California | Maximum      
Lessee, Lease, Description [Line Items]      
Lease term extension notice period 12 months    
California | Minimum      
Lessee, Lease, Description [Line Items]      
Lease term extension notice period 9 months    
California | Other Non-current Assets      
Lessee, Lease, Description [Line Items]      
Refundable security deposit   $ 0.4 $ 0.4