Annual report pursuant to Section 13 and 15(d)

Stock Based Compensation - Option vesting activity (Details)

v3.21.2
Stock Based Compensation - Option vesting activity (Details) - $ / shares
 12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Number of Option      
Options Vested, Beginning balance   10,291  
Vested 281,622 19,414  
Forfeited (775) (1,295)  
Options Vested, Ending balance 309,257 28,410  
Weighted Average Remaining Contractual Life (In years)      
Weighted Average Remaining Contractual Life In Years, beginning balance     8 years
Weighted Average Remaining Contractual Life In Years, Vested 8 years 9 months 18 days 8 years 1 month 6 days  
Weighted Average Remaining Contractual Life In Years Exercised Options Vested 0 years 0 years  
Weighted Average Remaining Contractual Life In Years, Forfeited 6 years 1 month 6 days 6 years 4 months 24 days  
Weighted Average Remaining Contractual Life In Years, Ending balance 8 years 7 months 6 days 7 years 2 months 12 days  
Weighted Average Exercise Price      
Weighted Average Exercise Price Beginning   $ 152.80  
Vested $ 7.15 89.06  
Exercised 0.00    
Forfeited 67.17 140.09  
Weighted Average Exercise Price Ending $ 16.91 $ 115.10