Quarterly report pursuant to Section 13 or 15(d)

Convertible Instruments and Accrued Interest - Long-term Convertible Note - April 23, 2021 Note (Detail)

v3.22.2.2
Convertible Instruments and Accrued Interest - Long-term Convertible Note - April 23, 2021 Note (Detail) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended
Apr. 23, 2021
Aug. 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
Warrants to purchase common shares, shares   5.5  
Indemnitors      
Debt Instrument [Line Items]      
Warrants to purchase common shares, shares   30.0  
Long-term Convertible Note - April 23, 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    
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    
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    
Debt proceeds requiring investor consent $ 75,000    
Additional debt, increase in interest rate 5.00%    
Amortization of issuance discount and costs   $ 439  
Net carrying value of note   $ 31,573 $ 30,309
Maximum | Long-term Convertible Note - April 23, 2021 Note      
Debt Instrument [Line Items]      
Conversion of principal and interest of convertible notes to common stock $ 7,000    
Convertible notes, interest rate 22.00%