Annual report pursuant to Section 13 and 15(d)

Subsequent Events - February 2024 Unit Offering and Series B Preferred Stock Repurchase and Cancellation (Details)

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Subsequent Events - February 2024 Unit Offering and Series B Preferred Stock Repurchase and Cancellation (Details)
$ / shares in Units, $ in Millions
 1 Months Ended
Mar. 26, 2024
$ / shares
shares
Feb. 13, 2024
USD ($)
item
$ / shares
shares
Mar. 14, 2024
shares
Dec. 31, 2023
shares
Dec. 31, 2022
shares
Warrant          
Subsequent Event          
Aggregate shares issued upon exercise of warrants       100 100
Pre-Funded Warrants          
Subsequent Event          
Aggregate shares issued upon exercise of warrants       207  
Subsequent Event          
Subsequent Event          
Aggregate share issued 62,675,000        
Price per share | $ / shares $ 0.03        
Subsequent Event | Pre-Funded Warrants          
Subsequent Event          
Warrants exercise price | $ / shares $ 0.0001        
Aggregate shares issued upon exercise of warrants 14,001,478        
Subsequent Event | February 2024 Unit Offering          
Subsequent Event          
Net proceeds | $   $ 10.0      
Subsequent Event | February 2024 Unit Offering | Pre-Funded Warrants          
Subsequent Event          
Number of warrants exercised     130,106,000    
Number of shares issued for exercise of warrants     129,968,679    
Subsequent Event | Units | February 2024 Unit Offering          
Subsequent Event          
Aggregate share issued   23,734,000      
Price per share | $ / shares   $ 0.065      
Number of common shares per unit | item   1      
Subsequent Event | Units | February 2024 Unit Offering | Warrant          
Subsequent Event          
Number of common shares per unit | item   1      
Warrants to purchase shares (per share)   1      
Warrants exercise price | $ / shares   $ 0.065      
Subsequent Event | Pre-Funded Units | February 2024 Unit Offering          
Subsequent Event          
Aggregate share issued   130,106,000      
Price per share | $ / shares   $ 0.0649      
Subsequent Event | Pre-Funded Units | February 2024 Unit Offering | Warrant          
Subsequent Event          
Number of common shares per unit | item   1      
Subsequent Event | Pre-Funded Units | February 2024 Unit Offering | Pre-Funded Warrants          
Subsequent Event          
Number of common shares per unit | item   1      
Warrants to purchase shares (per share)   1      
Subsequent Event | Series B Preferred Stock          
Subsequent Event          
Number of shares repurchased   62,657      
Repurchase price | $   $ 6.3      
Subsequent Event | Series B Preferred Stock | Series B preferred stock          
Subsequent Event          
Number of shares repurchased   81,315      
Aggregate shares issued upon exercise of warrants   81,315