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Note 10 - Capital Risk Management (Tables)
 12 Months Ended
Dec. 31, 2020
Statement Line Items [Line Items]  
Disclosure of capital risk management [text block]
      December 31,       December 31,  
      2020       2019  
Equity   $
316,668
     $
215,247
  
Cash and cash equivalents (
Note 3
)
    
(94,008
 )    
(72,360
 )
    $
222,660
     $
142,887