Annual report pursuant to Section 13 and 15(d)

Convertible Instruments and Accrued Interest - Convertible Note - Placement Agent Notes and Short-term Notes (Details)

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Convertible Instruments and Accrued Interest - Convertible Note - Placement Agent Notes and Short-term Notes (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2023
USD ($)
$ / shares
shares
Jul. 31, 2023
USD ($)
$ / shares
Jun. 30, 2023
USD ($)
item
$ / shares
shares
May 31, 2024
USD ($)
$ / shares
shares
Feb. 29, 2024
USD ($)
Nov. 30, 2023
USD ($)
Jun. 30, 2023
USD ($)
$ / shares
shares
May 31, 2024
USD ($)
$ / shares
shares
Dec. 30, 2023
$ / shares
Sep. 30, 2023
$ / shares
shares
May 31, 2023
shares
Jun. 30, 2022
$ / shares
Debt Instrument                        
Warrants to purchase common shares, shares | shares 52,600,000                 21,500,000 200,000  
Term of warrants 5 years                 5 years    
Class of warrants, exercise price | $ / shares $ 0.21 $ 0.306 $ 0.306 $ 0.21     $ 0.306 $ 0.21 $ 0.35 $ 0.50   $ 0.50
Stock offering costs       $ 26,000 $ 900 $ 400            
Number of share in a unit | item     1                  
Number of warrant in a unit | item     1                  
Intraday volume weighted average price, Percentage     90.00%                  
Loss on note extinguishment   $ 2,400           $ (13,374)        
Placement Agent Notes                        
Debt Instrument                        
Convertible notes, interest rate     6.00%       6.00%          
Debt instrument term             18 months          
Convertible note, aggregate principal     $ 2,300       $ 2,300          
Principal amount of debt issued             1,300          
Term of warrants       10 years       10 years        
Proceeds from sale of notes             1,100          
Notes issuance costs             $ 200          
Loss on note extinguishment $ 1,600 $ 2,100                    
Placement Agent Notes | Short-term Notes                        
Debt Instrument                        
Convertible notes, interest rate 10.00%                      
Convertible note, aggregate principal $ 1,000                      
Term of warrants       5 years       5 years        
Class of warrants, exercise price | $ / shares       $ 0.35       $ 0.35        
Proceeds from sale of notes               $ 900        
Notes issuance costs               $ 100        
Discount rate on sale price of units sold, considered for conversion of notes 20.00%                      
Number of warrants to purchase common stock shares agreed to issue for each dollar of principal amount of Short-term Notes sold | shares       1       1        
Placement Agent Notes | Placement Agent Warrants Issue One                        
Debt Instrument                        
Warrants to purchase common shares, shares | shares     1,300,000       1,300,000          
Term of warrants     3 years       3 years          
Class of warrants, exercise price | $ / shares     $ 0.50       $ 0.50          
Placement Agent Notes | Placement Agent Warrants Issue Two                        
Debt Instrument                        
Warrants to purchase common shares, shares | shares     400,000       400,000          
Term of warrants     10 years       10 years          
Class of warrants, exercise price | $ / shares     $ 0.26       $ 0.26