Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Convertible Instruments - Long-term Convertible Note - April 2, 2021 Note (Detail) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended
Apr. 02, 2021
Aug. 31, 2021
Aug. 31, 2020
May 31, 2021
Debt Instrument [Line Items]        
Net Proceeds     $ 25,000  
Accrued interest on convertible notes   $ 2,244   $ 2,007
Interest on convertible notes   1,686 $ 566  
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      
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      
Specified monthly redemption amount $ 7,500      
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      
Period in which company was obligated to reduce the outstanding balance of debt 5 months      
Debt proceeds requiring investor consent $ 50,000      
Additional debt, increase in interest rate 5.00%      
Amortization of issuance discount and costs   441    
Unamortized discount and issuance costs   2,800    
Accrued interest on convertible notes   1,200    
Interest on convertible notes   750    
Net carrying value of note   29,700    
Monthly redemption amount deferred   $ 7,500    
Long-term Convertible Note - April 2, 2021 Note | Maximum        
Debt Instrument [Line Items]        
Conversion of principal and interest of convertible notes to common stock $ 3,500      
Threshold percentage of default interest rate 22.00%