Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets Activity (Detail)

v3.10.0.1
Intangible Assets Activity (Detail) - USD ($)
Aug. 31, 2018
May 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross carrying amounts $ 3,500,000 $ 3,500,000
Accumulated amortization (2,056,365) (1,968,846)
Total amortizable intangible assets, net 1,443,635 1,531,154
Patents currently not amortized 35,989 35,989
Carrying value of intangibles, net $ 1,479,624 $ 1,567,143