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Note 9 - Common Stock Subscribed (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
May 02, 2018
May 31, 2018
May 31, 2017
Feb. 28, 2018
Proceeds from Sale of Common Stock Subscribed   $ 180,001 $ 150,000
Stock Issued During Period, Shares, New Issues   275,000   2,836,000
Assigned Investors for Previous Subscription [Member]        
Stock Issued During Period, Shares, New Issues 100,000