XML 32 R21.htm IDEA: XBRL DOCUMENT v3.8.0.1
Accounts Receivable (Details) - USD ($)
Feb. 28, 2018
May 31, 2017
Receivables [Abstract]    
Accounts receivable $ 42,916 $ 33,513
Less: Allowance for bad debts (3,568) (810)
Accounts receivable, net $ 39,348 $ 32,703