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Summary of Significant Accounting Policies - Equity at the Market Offering, Income Taxes, Inventory and Property and Equipment (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Accounting Policies [Abstract]        
CARES Act, cash benefits for the fiscal year 2020 $ 6,800,000   $ 6,800,000  
Inventory write-down $ 0 $ 0 $ 0 $ 0
Minimum        
Property, Plant and Equipment [Abstract]        
Property and equipment, useful life     2 years  
Maximum        
Property, Plant and Equipment [Abstract]        
Property and equipment, useful life     39 years