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Warrants - Warrants Issued in Registered Direct Offering (Details)
1 Months Ended 12 Months Ended
Dec. 31, 2021
USD ($)
shares
Aug. 31, 2021
USD ($)
$ / shares
shares
Mar. 31, 2021
USD ($)
shares
Oct. 31, 2020
USD ($)
D
$ / shares
shares
Dec. 31, 2021
shares
Dec. 31, 2020
USD ($)
shares
Class of Warrant or Right [Line Items]            
Common Stock, Shares, Issued | shares 17,701,592       17,701,592 10,065,727
Gross proceeds from issuance of common stock     $ 5,000,000.0      
Dividend yield (in percent)         0.00%  
Relative fair value of the Warrant Shares           $ 2,005,000
Pre-Funded Warrants            
Class of Warrant or Right [Line Items]            
Issuance of common stock upon exercise of warrants (in shares) | shares 3,647,556          
Proceeds from warant exercises $ 4,000          
Options            
Class of Warrant or Right [Line Items]            
Vesting period (in years)         4 years  
Securities Purchase Agreement Member            
Class of Warrant or Right [Line Items]            
Issuance of common stock (in shares) | shares   1,300,000 1,037,405      
Common Stock, Shares, Issued | shares       1,134,470    
Warrant to purchase number of Common Stock (in shares) | shares       567,234    
Combined purchase price for each Common Stock and accompanying Warrant | $ / shares   $ 5.053   $ 7.4925    
Combined purchase price for each Pre-Funded Warrant and accompanying Warrant | $ / shares   5.052        
Difference between Combined purchase price for each share of Common Stock and accompanying Warrant to Pre-Funded Warrant and accompanying Warrant | $ / shares   $ 0.001        
Gross proceeds from issuance of common stock   $ 25,000,000.0 $ 7,000,000.0 $ 8,500,000    
Proceeds from issuance of common stock, net   $ 22,600,000 $ 6,400,000 7,800,000    
Relative fair value of the Common Stock Shares       5,800,000    
Relative fair value of the Warrant Shares       $ 2,000,000.0    
Securities Purchase Agreement Member | Series A Warrant            
Class of Warrant or Right [Line Items]            
Exercise price of warrants (in dollars per share) | $ / shares       $ 7.43    
Exercisable term of warrants       6 months    
Expiration term of warrants       3 years 6 months    
Securities Purchase Agreement Member | Series B Warrant            
Class of Warrant or Right [Line Items]            
Exercise price of warrants (in dollars per share) | $ / shares       $ 9.00    
Exercisable term of warrants       6 months    
Expiration term of warrants       3 years 6 months    
Redemption price of warrants (in dollars per share) | $ / shares       $ 0.01    
Redeemable of warrant, minimum price of the Company's common stock for five consecutive trading days (in dollars per share) | $ / shares       $ 9.00    
Redeemable of warrant, number of consecutive trading days upon the price of the Company's common stock closing at $9.00 or more | D       5    
Securities Purchase Agreement Member | Pre-Funded Warrants            
Class of Warrant or Right [Line Items]            
Warrant to purchase number of Common Stock (in shares) | shares   3,647,556        
Combined purchase price for each Pre-Funded Warrant and accompanying Warrant | $ / shares   $ 5.052        
Exercise price of warrants (in dollars per share) | $ / shares   $ 0.001        
Number of shares issuable per warrant | shares   1        
Percentage of ownership on issue of outstanding common stock for warrants   4.99%        
Percentage on issue of outstanding common stock for warrants   9.99        
Securities Purchase Agreement Member | Warrants Member            
Class of Warrant or Right [Line Items]            
Warrant to purchase number of Common Stock (in shares) | shares   2,473,778        
Exercise price of warrants (in dollars per share) | $ / shares   $ 5.00        
Number of shares issuable per warrant | shares   1        
Percentage of ownership on issue of outstanding common stock for warrants   4.99%        
Percentage on issue of outstanding common stock for warrants   9.99        
Expected term (in years)   7 years   4 years    
Expected volatility   97.00%        
Risk-free interest-rate   0.96%        
Dividend yield (in percent)   0.00%        
Securities Purchase Agreement Member | Common Stock Shares and the Warrants Shares            
Class of Warrant or Right [Line Items]            
Proceeds from issuance of common stock, net   $ 22,600,000        
Relative fair value of the Common Stock Shares   4,400,000        
Relative fair value of the prefunded warrants   12,200,000        
Relative fair value of the Warrant Shares   $ 6,000,000        
Warrants Member | Securities Purchase Agreement Member            
Class of Warrant or Right [Line Items]            
Expected volatility       104.00%    
Risk-free interest-rate       0.25%    
Dividend yield (in percent)       0.00%