Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Additional Information (Details)

v3.22.2
Stock Based Compensation - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
May 31, 2022
May 31, 2021
May 31, 2022
May 31, 2021
Aug. 31, 2021
Jun. 04, 2021
Jul. 01, 2020
Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares of common stock issuable (in shares)           3,000,000 3,000,000 250,000
Common stock, par or stated value per share (in dollars per share) $ 0.0001   $ 0.0001   $ 0.0001 $ 0.0001    
Share-based compensation arrangement by share-based payment award, expiration period     10 years          
Compensation expense $ 321,000 $ 444,000 $ 1,069,000 $ 1,363,000        
Share-based payment arrangement, noncash expense     1,069,000 $ 1,250,000        
Share-based compensation arrangement by share-based payment award, options, outstanding, intrinsic value 0   $ 0          
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition     2 years 9 months 18 days          
Share-based payment arrangement, nonvested award, cost not yet recognized, amount 2,477,000   $ 2,477,000          
Board of Directors                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based payment arrangement, noncash expense $ 56,250   $ 168,750          
Options Granted on or After July 1, 2020                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, award vesting period     4 years          
Share-based payment arrangement, tranche one | Granted Prior to July 1, 2020                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage     25.00%          
Share-based compensation arrangement by share-based payment award, award vesting period     12 months          
Share-based payment arrangement, tranche one | Options Granted on or After July 1, 2020                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage     25.00%          
Share-based compensation arrangement by share-based payment award, award vesting period     1 year          
Share-based payment arrangement, tranche two | Granted Prior to July 1, 2020                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, award vesting period     36 months