Quarterly report pursuant to Section 13 or 15(d)

Convertible Instruments and Accrued Interest - Long-term Convertible Note - April 2, 2021 Note (Detail)

v3.22.2.2
Convertible Instruments and Accrued Interest - Long-term Convertible Note - April 2, 2021 Note (Detail) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 12 Months Ended
Apr. 02, 2021
Aug. 31, 2022
Aug. 31, 2021
May 31, 2022
May 31, 2021
Debt Instrument [Line Items]          
Amortization of issuance discount and costs   $ 592      
Net carrying value of note   43,953     $ 42,215
Long-term Convertible Note - April 2, 2021 Note          
Debt Instrument [Line Items]          
Debt instrument term 2 years        
Convertible note, aggregate principal $ 28,500        
Net Proceeds 25,000        
Unamortized discount 3,400        
Debt issuance costs 100        
Conversion of principal and interest of convertible notes to common stock $ 3,500        
Convertible notes, interest rate 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%        
Conversion price per share $ 10.00        
Number of days of notice to be given for conversion of notes into common stock 5 days        
Shares reserved 6.0        
Debt instrument lock in period 6 months        
Number of days of notice to be given for redemption 3 days        
Debt instrument prepayment percentage premium 15.00%        
Number of days of notice to be given for prepayment 15 days        
Debt proceeds requiring investor consent $ 50,000        
Additional debt, increase in interest rate 5.00%        
Amortization of issuance discount and costs   153      
Net carrying value of note   12,380     $ 11,906
Loss on induced conversion   $ 0 $ 0 $ 18,800  
Debt instrument, decrease in debt per month $ 7,500        
Debt instrument term of reduced outstanding amount 5 months        
Conversion of Series C convertible preferred stock to common stock (in shares) 25.3        
Long-term Convertible Note - April 2, 2021 Note | Maximum          
Debt Instrument [Line Items]          
Convertible notes, interest rate 22.00%        
Partitioned Notes Of April 2021 Notes [Member]          
Debt Instrument [Line Items]          
Convertible note, aggregate principal $ 9,800     $ 18,700