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)

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Convertible Instruments and Accrued Interest - Convertible Note - April 2, 2021 and April 23, 2021 Note (Details) - USD ($)
shares in Millions, $ in Millions
9 Months Ended
Feb. 29, 2024
Apr. 23, 2021
Apr. 02, 2021
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     6.0
Convertible note, aggregate principal $ 2.8    
Conversion of preferred stock to common stock (in shares) 30.9    
Loss on induced conversion $ 6.0    
Partitioned Notes      
Debt Instrument [Line Items]      
Convertible note, aggregate principal 4.8    
Convertible Note - April 23, 2021 Note      
Debt Instrument [Line Items]      
Shares reserved   6.0  
Convertible note, aggregate principal $ 27.9