Annual report pursuant to Section 13 and 15(d)

License Agreements - Additional Information (Detail)

v3.19.2
License Agreements - Additional Information (Detail)
May 31, 2019
USD ($)
Apr. 15, 2019
USD ($)
Apr. 15, 2019
GBP (£)
May 31, 2018
USD ($)
Licenses Agreements [Line Items]        
Accrued license fee $ 208,600 $ 365,000 £ 300,000 $ 133,600
Royalty on every net sales 2.00%