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Stockholders' Equity - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended
Apr. 30, 2021
Jul. 31, 2020
Apr. 30, 2019
Jan. 31, 2018
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Feb. 28, 2018
Feb. 15, 2018
Stockholders Equity [Line Items]                  
Commission percent 3.00%     3.00%          
Issues shares         $ 8,394   $ 8,394    
Unamortized costs related to legal, accounting, and other fees             $ 0    
Exercise price (in usd per share)               $ 3.00  
Warrant, exercise price, decrease (in usd per share)   $ 0.96 $ 0.98            
Deemed dividend from trigger of down round provision feature   $ 6,863 $ 800,000            
Number Of Common Stock Warrants Exercised         0 52,500      
Warrant exercises, gross           $ 50,000      
Accounting Standards Update 2017-11                  
Stockholders Equity [Line Items]                  
Estimated fair value of warrants recorded in equity                 $ 3,000,000
Lincoln Park                  
Stockholders Equity [Line Items]                  
Obligation to purchase common stock $ 15,000,000                
April 2021 At The Market Sales Agreement                  
Stockholders Equity [Line Items]                  
Issues shares 50,000,000                
Purchase Agreement                  
Stockholders Equity [Line Items]                  
Legal, accounting and other fees related to purchase agreement $ 374,000