Annual report pursuant to Section 13 and 15(d)

License Agreements - Additional Information (Detail)

v3.10.0.1
License Agreements - Additional Information (Detail)
May 31, 2018
USD ($)
Mar. 15, 2018
USD ($)
Mar. 15, 2018
GBP (£)
May 31, 2017
USD ($)
Licenses Agreements [Line Items]        
Accrued license fee $ 133,600 $ 400,000 £ 300,000 $ 167,000
Royalty on every net sales 2.00%