Quarterly report pursuant to Section 13 or 15(d)

Derivative Liability - Additional Information (Detail)

v3.10.0.1
Derivative Liability - Additional Information (Detail)
3 Months Ended 6 Months Ended
Nov. 15, 2018
USD ($)
Nov. 30, 2018
USD ($)
Nov. 30, 2017
USD ($)
Nov. 30, 2018
USD ($)
Nov. 30, 2017
USD ($)
Derivative [Line Items]          
Percentage Of Outstanding Common Stock To Be Acquired       50.00%  
Change in fair value of derivative liability   $ 281,055 $ 829,600 $ (466,412) $ 466,934
Embedded derivative liability $ 1,280,000 $ 1,280,000   $ 1,280,000  
Stock price volatility          
Derivative [Line Items]          
Embedded Derivative Liability, Measurement Input 0.588 0.588   0.588  
Risk free rate          
Derivative [Line Items]          
Embedded Derivative Liability, Measurement Input 0.0278 0.0278   0.0278  
Fair value of underlying stock          
Derivative [Line Items]          
Embedded Derivative Liability, Exercise Price       $ 2  
Expected Term (In Years)          
Derivative [Line Items]          
Embedded Derivative Liability Expected Term 1 year 7 months 9 days     1 year 7 months 9 days