Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Fair Value of Options Granted (Detail)

v3.20.1
Stockholders' Equity - Fair Value of Options Granted (Detail) - Service-Based Vesting Condition Options [Member]
 3 Months Ended
Feb. 29, 2020
Weighted average values:  
Expected life 9 years
Measurement Input, Expected Dividend Rate [Member]  
Weighted average values:  
Expected weighted average 0
Measurement Input, Price Volatility [Member]  
Weighted average values:  
Expected weighted average 64.25
Measurement Input, Risk Free Interest Rate [Member]  
Weighted average values:  
Expected weighted average 1.90