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Preferred Stock (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Class of Stock [Line Items]    
Shares Authorized 1,021,165 5,546,154
Issued   5,537,062
Outstanding 857,055 5,537,062
Carrying Value   $ 11,607
Series A    
Class of Stock [Line Items]    
Shares Authorized   5,524,926
Issued   5,524,926
Outstanding   5,524,926
Carrying Value   $ 9,895
Liquidation Preference per Share   $ 1.665
Series B convertible preferred stock    
Class of Stock [Line Items]    
Shares Authorized   11,000
Issued   1,971
Outstanding 0 1,971
Carrying Value   $ 476
Series B-1 convertible preferred stock    
Class of Stock [Line Items]    
Shares Authorized   63
Outstanding   0
Series B-2 convertible preferred stock    
Class of Stock [Line Items]    
Shares Authorized 10,165 10,165
Issued   10,165
Outstanding 0 10,165
Carrying Value   $ 1,236
Series C perpetual preferred stock    
Class of Stock [Line Items]    
Shares Authorized 1,011,000 0
Issued 0 0
Outstanding 0 0
Liquidation Preference per Share $ 8.00