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Debt - Convertible Notes (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended 30 Months Ended
Jan. 16, 2020
Mar. 29, 2019
Dec. 31, 2020
Dec. 31, 2021
Jun. 11, 2020
Jan. 15, 2020
Dec. 31, 2019
Debt Instrument [Line Items]              
Accumulated interest $ 0.1            
Common stock, par value (in dollars per share)     $ 0.0001   $ 0.0001   $ 0.0001
Preferred stock, shares authorized (in shares)   2,000,000 5,000,000     5,000,000  
Stated interest rate   5.00%          
Percentage of number of votes that each share of preferred stock holders are entitled to     11.07%        
Convertible Preferred Stock              
Debt Instrument [Line Items]              
Preferred stock, shares authorized (in shares)     3,300,000     3,300,000 2,000,000
Preferred Stock              
Debt Instrument [Line Items]              
Conversion of convertible securities     111,548        
Common Stock              
Debt Instrument [Line Items]              
Conversion of convertible securities     22,310        
Subsequent Event              
Debt Instrument [Line Items]              
Interest rate on convertible notes       10.00%      
Convertible Debt              
Debt Instrument [Line Items]              
Proceeds from issuance of subordinated convertible promissory notes   $ 1.7          
Net proceeds from the conversion of convertible debt to preferred stock $ 1.8            
Conversion price (in dollars per share) $ 0.67            
Shares issued (in shares) 2,709,018            
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001