Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v3.20.2
Related Party Transactions - Additional Information (Detail) - USD ($)
Oct. 07, 2019
Sep. 30, 2019
Sep. 12, 2019
Aug. 31, 2020
Nov. 30, 2019
Jul. 31, 2019
Jun. 12, 2019
Related Party Transaction [Line Items]              
Exercise price of warrants, per share         $ 0.45    
Stock options, term 10 years   10 years        
Percentage of Shares Issuable Upon Exercise Of Original Warrants             50.00%
Convertible note, aggregate principal       $ 15,000,000      
Convertible Promissory Notes [Member]              
Related Party Transaction [Line Items]              
Warrants to purchase common shares, shares         4,750,000    
Convertible note, aggregate principal       17,100,000      
Two Thousand And Nineteen Short Term Convertible Notes [Member]              
Related Party Transaction [Line Items]              
Convertible note, aggregate principal   $ 200,000   $ 5,500,000 $ 200,000    
DrKelly [Member]              
Related Party Transaction [Line Items]              
Exercise price of warrants, per share             $ 0.40
Stock options aggregate awarded shares 187,500   750,000        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price $ 0.39   $ 0.385        
DrKelly [Member] | Additional Shares [Member]              
Related Party Transaction [Line Items]              
Warrants to purchase common shares, shares             25,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized             50,000
DrWelch [Member]              
Related Party Transaction [Line Items]              
Stock options aggregate awarded shares 187,500   250,000        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price $ 0.39   $ 0.385        
DrWelch [Member] | Convertible Promissory Notes [Member]              
Related Party Transaction [Line Items]              
Warrants to purchase common shares, shares   1,000,000          
Convertible note, aggregate principal   $ 1,075,343          
DrWelch [Member] | Two Thousand And Nineteen Short Term Convertible Notes [Member] | Tranche Two [Member]              
Related Party Transaction [Line Items]              
Accrued but unpaid interest   75,343          
Convertible note, aggregate principal   $ 1,000,000          
DavidF Welch [Member]              
Related Party Transaction [Line Items]              
Warrants to purchase common shares, shares           1,000,000  
DavidF Welch [Member] | Additional Shares [Member]              
Related Party Transaction [Line Items]              
Warrants to purchase common shares, shares           500,000  
DrKelly And DrWelch [Member]              
Related Party Transaction [Line Items]              
Stock options aggregate awarded shares     1,375,000