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Pre-Funded Warrants - Summary of Pre-Funded Warrants Outstanding (Details) - $ / shares
Jun. 11, 2020
Feb. 04, 2020
Dec. 31, 2021
Stockholders' Equity Note [Abstract]      
Issue Date Jun. 11, 2020 Feb. 04, 2020  
Exercise Price $ 0.001 $ 0.001 $ 0.001
Expiration Date Jun. 11, 2040 Feb. 04, 2040  
Number of shares underlying 909,091 2,884,615 3,793,706