Quarterly report pursuant to Section 13 or 15(d)

Equity Awards and Warrants - Private Placement of Shares of Common Stock and Warrants (Details)

v3.23.4
Equity Awards and Warrants - Private Placement of Shares of Common Stock and Warrants (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2023
Jul. 31, 2023
Nov. 30, 2023
Sep. 30, 2023
Aug. 31, 2022
Nov. 30, 2023
Nov. 30, 2022
Oct. 23, 2023
Jun. 30, 2023
Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Exercise price of share   $ 0.306   $ 0.50         $ 0.306 $ 0.50
Exercise of warrants for cash, shares           3,000,000.0        
Exercise of warrants for cash           $ 300,000        
Common stock warrants to purchase shares       21,500,000            
Purchase price per unit               $ 0.16    
Cash and non-cash issuance costs capitalized   $ 900,000                
Loss on extinguishment of convertible notes   2.4 $ (2,406,000)     (4,490,000)        
Term of warrants       5 years            
Placement agent fees and expenses       $ 400,000            
Percentage of gross proceeds       12.00%            
Stock issued for private offerings     $ 6,328,000              
Issuance of common stock for principal of convertible notes           $ 2,000,000 $ 500,000      
Employees                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Shares issued during the period new issues shares           153,027 460,095      
Share-Based Payment Arrangement, Grantee Status [Extensible Enumeration]           Share-based Payment Arrangement, Nonemployee [Member] Share-based Payment Arrangement, Nonemployee [Member]      
Consultants                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stocks issued for severance payment           1,091,865 510,872      
Share-Based Payment Arrangement, Grantee Status [Extensible Enumeration]           Share-based Payment Arrangement, Nonemployee [Member] Share-based Payment Arrangement, Nonemployee [Member]      
Placement agent notes                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Loss on extinguishment of convertible notes   (2,100,000)                
Private Equity Offering                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stock issued for private offerings         $ 17,544,000          
Accredited Investors                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Common stock warrants to purchase shares       21,500,000            
Stock issued for private offerings       $ 3,000,000.0            
Accredited Investors | Placement agent notes                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Issuance of common stock for principal of convertible notes   $ 2,300,000                
Warrants issued in debt conversion   14,300,000                
Allotment to placement agent                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Exercise price of share       $ 0.16            
Common stock warrants to purchase shares       3,200,000            
Term of warrants       10 years            
Placement agent fees and expenses $ 5,000,000 $ 5,000,000                
Percentage of gross proceeds       15.00%            
July Private Placement | Placement agent notes                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Purchase price per unit   $ 0.16                
Number of common shares in a fixed combination issue of shares   1                
Number of warrants in a fixed combination issue of securities   1                
Number of shares   1                
Closing share price (as percentage)   90.00%                
Minimum                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Exercise price of share     $ 0.10     $ 0.10