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Stockholder's Equity - Summary of Common Stock Reserved for Issuance (Details) - shares
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
Dec. 31, 2021
Common stock and common stock equivalents:        
Common shares, shares outstanding (in shares) 16,795,673 12,163,673 9,407,296  
Common stock and pre-funded stock warrants (in shares) 18,588,673   18,463,673  
Options to purchase common stock (in shares) 1,570,599   423,317  
Convertible preferred stock (in shares) 1,363,636   1,363,636  
Total (in shares) 32,033,132   30,572,785  
Registered Direct Offering Warrants        
Common stock and common stock equivalents:        
Warrants outstanding (in shares) 1,793,000   9,056,377  
Private Placement Warrants        
Common stock and common stock equivalents:        
Warrants outstanding (in shares) 10,196,268   10,196,268  
Unvested restricted stock awards        
Common stock and common stock equivalents:        
Unvested restricted stock awards/units (in shares) 891   891  
Unvested restricted stock units        
Common stock and common stock equivalents:        
Unvested restricted stock awards/units (in shares) 313,065 125,000 125,000 29,289