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Note 9 - Supplemental Cash Flow Information
9 Months Ended
Feb. 28, 2019
Notes to Financial Statements  
Cash Flow, Supplemental Disclosures [Text Block]
9.
SUPPLEMENTAL CASH FLOW INFORMATION
 
For the nine months ended February 28,   2019     2018  
             
Supplemental cash flow information                
Interest paid   $
—  
    $
—  
 
Income taxes paid (received)   $
—  
    $
—  
 
Non-cash financing and investing transactions                
Shares issued to acquire mineral properties   $
59,500
    $
847,000
 
Reclassification of contributed surplus on exercise of stock options   $
2,736,339
    $
123,302