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Capital Structure - Underwriting Agreement (Details) - USD ($)
$ / shares in Units, $ in Millions
Mar. 07, 2022
Mar. 31, 2022
Jan. 26, 2022
Jun. 29, 2021
Capital Structure        
Exercise price of warrants (in dollars per share)   $ 0.0001 $ 1.21 $ 1.21
Fair value of waarrants   $ 0.4 $ 0.6  
Underwriting Agreement        
Capital Structure        
Issuance of common stock, net of cash issuance costs (in shares) 3,030,000      
Exercisable term of warrants 6 months      
Warrants outstanding term 5 years      
Underwriting Agreement | Pre Funded Warrants        
Capital Structure        
Number of warrants issued to purchase shares (in shares) 3,030,000      
Underwriting Agreement | March 2022 Offering        
Capital Structure        
Proceeds from issuance of warrants $ 7.6      
Other cost of warrants 0.8      
Fair value of waarrants $ 6.3      
Underwriting Agreement | March 2022 Offering | Maximum        
Capital Structure        
Number of warrants issued to purchase shares (in shares) 6,666,000      
Underwriting Agreement | March 2022 Offering | Pre Funded Warrants        
Capital Structure        
Number of warrant to purchase each shares 1.1      
Exercise price of warrants (in dollars per share) $ 0.0001      
Underwriting Agreement | March 2022 Offering | Common Warrants        
Capital Structure        
Exercise price of warrants (in dollars per share) $ 1.30      
Exercisable term of warrants 6 months      
Warrants outstanding term 5 years      
Underwriting Agreement | March 2022 Offering | Common Warrants | Maximum        
Capital Structure        
Number of warrants issued to purchase shares (in shares) 6,666,000