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Summary of Significant Accounting Policies - Summary of Property and Equipment (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Property Plant And Equipment [Line Items]    
Property and equipment $ 708 $ 689
Less accumulated depreciation (259) (203)
Property and equipment, net 449 486
Leasehold Improvement    
Property Plant And Equipment [Line Items]    
Property and equipment 64 64
Furniture and Fixtures    
Property Plant And Equipment [Line Items]    
Property and equipment 93 93
Equipment    
Property Plant And Equipment [Line Items]    
Property and equipment 354 335
Computer Software and Hardware    
Property Plant And Equipment [Line Items]    
Property and equipment $ 197 $ 197