Quarterly report pursuant to Section 13 or 15(d)

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

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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 6 Months Ended 12 Months Ended
Apr. 02, 2021
Nov. 30, 2022
Nov. 30, 2022
Nov. 30, 2021
May 31, 2022
May 31, 2021
Debt Instrument [Line Items]            
Debt issuance costs     $ 2,100      
Amortization of issuance discount and costs     1,190      
Net carrying value of note   $ 45,210 45,210     $ 42,215
Loss on induced conversion   600 600 $ 6,800    
Long-term Convertible Note - April 2, 2021 Note            
Debt Instrument [Line Items]            
Debt instrument term 2 years          
Convertible note, aggregate principal $ 28,500 9,300 9,300      
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     314      
Net carrying value of note   12,363 12,363     $ 11,906
Loss on induced conversion         $ 18,800  
Debt instrument, decrease in debt per month $ 7,500          
Debt instrument term of reduced outstanding amount 5 months          
Conversion of 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%          
November Partitioned Notes            
Debt Instrument [Line Items]            
Convertible note, aggregate principal   $ 500 $ 500      
Conversion of preferred stock to common stock (in shares)   1.8        
Partitioned Notes Of April 2021 Notes [Member]            
Debt Instrument [Line Items]            
Convertible note, aggregate principal $ 9,800       $ 18,700