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Capital Stock - Common Stock Warrants (Details) - USD ($)
1 Months Ended
Aug. 31, 2015
Mar. 31, 2020
Class of Warrant or Right [Line Items]    
Warrants to purchase (in shares)   49,997
Common Stock Warrants | Series A convertible preferred stock    
Class of Warrant or Right [Line Items]    
Warrants to purchase (in shares) 62,936  
Price per share (in dollars per share) $ 0.0001  
Fair value of warrants $ 41,509