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Common Stock - Additional Information (Details) - $ / shares
1 Months Ended
Jul. 31, 2018
Feb. 28, 2021
Class Of Warrant Or Right [Line Items]    
Warrants issued to purchase common stock 249,218  
Warrants expiration date Jul. 26, 2028  
Warrant exercise price $ 0.07  
Common Stock    
Class Of Warrant Or Right [Line Items]    
Number of common stock purchased upon exercise of warrants   82,603