Annual report [Section 13 and 15(d), not S-K Item 405]

Convertible Instruments and Accrued Interest - Convertible Note - April 2, 2021 & April 23, 2021 Note (Details)

v3.25.2
Convertible Instruments and Accrued Interest - Convertible Note - April 2, 2021 & April 23, 2021 Note (Details)
$ / shares in Units, $ in Thousands, shares in Millions
12 Months Ended
Apr. 23, 2021
USD ($)
$ / shares
shares
Apr. 02, 2021
USD ($)
$ / shares
shares
May 31, 2025
USD ($)
agreement
shares
May 31, 2024
USD ($)
agreement
shares
Apr. 30, 2025
Mar. 31, 2025
Debt Instrument            
Aggregate principal amount     $ 27,200 $ 30,200    
Gain on restructuring of payables     407      
Convertible Note - April 2, 2021 Note            
Debt Instrument            
Convertible note, aggregate principal   $ 28,500        
Consideration received   25,000        
Unamortized discount   3,400        
Debt issuance costs   $ 100        
Convertible notes, interest rate         6.00% 10.00%
Percentage increase in amount payable on default   15.00%        
Percentage increase in amount payable, second scenario   10.00%        
Percentage increase in amount payable, third default scenario   5.00%        
Debt proceeds requiring investor consent   $ 50,000        
Additional debt, increase in interest rate   5.00%        
Conversion price per share | $ / shares   $ 10        
Number of days of notice to be given for conversion of notes into common stock   5 days        
Shares reserved | shares   6.0        
Debt instrument lock in period   6 months        
Number of days of notice to be given for redemption   3 days        
Conversion of principal and interest of convertible notes to common stock   $ 3,500        
Debt instrument prepayment percentage premium   15.00%        
Number of days of notice to be given for prepayment   15 days        
Beneficial conversion feature   $ 0        
Number of exchange agreements | agreement       6    
Conversion of Series C preferred stock to common stock (in shares) | shares       20.4    
Aggregate principal amount     2,831 $ 2,831    
Loss on induced conversion       4,700    
Convertible Note - April 2, 2021 Note | Maximum            
Debt Instrument            
Convertible notes, interest rate         22.00%  
Partitioned Notes, April 2, 2021            
Debt Instrument            
Convertible note, aggregate principal       3,300    
Partitioned Notes, April 23, 2021            
Debt Instrument            
Convertible note, aggregate principal     $ 4,500      
Convertible Note - April 23, 2021 Note            
Debt Instrument            
Convertible note, aggregate principal $ 28,500          
Consideration received 25,000          
Unamortized discount 3,400          
Debt issuance costs $ 100          
Convertible notes, interest rate         6.00% 10.00%
Percentage increase in amount payable on default 15.00%          
Percentage increase in amount payable, second scenario 10.00%          
Percentage increase in amount payable, third default scenario 5.00%          
Debt proceeds requiring investor consent $ 75,000          
Additional debt, increase in interest rate 5.00%          
Conversion price per share | $ / shares $ 10          
Number of days of notice to be given for conversion of notes into common stock 5 days          
Shares reserved | shares 6.0          
Debt instrument lock in period 6 months          
Number of days of notice to be given for redemption 3 days          
Conversion of principal and interest of convertible notes to common stock $ 7,000          
Threshold trading days to satisfy redemption obligation 3 days          
Debt instrument prepayment percentage premium 15.00%          
Number of days of notice to be given for prepayment 15 days          
Beneficial conversion feature $ 0          
Number of exchange agreements | agreement     7      
Conversion of Series C preferred stock to common stock (in shares) | shares     25.4      
Aggregate principal amount     $ 24,369 27,369    
Loss on induced conversion     $ 1,200 $ 1,900    
Convertible Note - April 23, 2021 Note | Maximum            
Debt Instrument            
Convertible notes, interest rate         22.00%