Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.4
Convertible Instruments and Accrued Interest - Convertible Note - April 2, 2021 and April 23, 2021 Note (Details)
shares in Millions, $ in Millions
6 Months Ended
Nov. 30, 2023
USD ($)
agreement
shares
Nov. 30, 2022
USD ($)
Apr. 23, 2021
shares
Apr. 02, 2021
shares
Debt Instrument [Line Items]        
Number of days of notice to be given for conversion of notes into common stock 5 days      
Convertible Note - April 2, 2021 Note        
Debt Instrument [Line Items]        
Shares reserved | shares       6.0
Number of exchange agreements | agreement 4      
Conversion of preferred stock to common stock (in shares) | shares 12.2      
Convertible note, aggregate principal | $   $ 4.1    
Loss on induced conversion | $ $ 2.6      
Partitioned Notes        
Debt Instrument [Line Items]        
Convertible note, aggregate principal | $ $ 2.0      
Convertible Note - April 23, 2021 Note        
Debt Instrument [Line Items]        
Shares reserved | shares     6.0