Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Note 14 - Capital and Other Components of Equity - Assumptions (Details)

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Note 14 - Capital and Other Components of Equity - Assumptions (Details)
1 Months Ended 12 Months Ended
May 09, 2018
$ / shares
Dec. 27, 2017
USD ($)
$ / shares
Feb. 21, 2017
CAD ($)
$ / shares
May 31, 2018
CAD ($)
$ / shares
Mar. 31, 2019
$ / shares
Statement Line Items [Line Items]          
Exercise price, warrants issued | (per share) $ 1.31 $ 1.2625 $ 2.15    
May 2018 public offering warrants 2018 [member]          
Statement Line Items [Line Items]          
Exercise price, warrants issued | $ / shares       $ 1.31 $ 1.31
Share price       $ 0.82  
Risk-free interest       2.21%  
Estimated life (in years) (Year)       5 years  
Expected volatility       87.40%  
Warrants issued to broker in May 2018 public offering [Member]          
Statement Line Items [Line Items]          
Exercise price, warrants issued | $ / shares       $ 1.05  
Share price       $ 0.81  
Risk-free interest       2.20%  
Estimated life (in years) (Year)       5 years  
Expected volatility       87.40%  
Public offering warrants in 2017 [member]          
Statement Line Items [Line Items]          
Exercise price, warrants issued | $ / shares   $ 1.26      
Share price   $ 0.97      
Risk-free interest   2.22%      
Estimated life (in years) (Year)   5 years      
Expected volatility   93.52%      
Warrants issued to broker in December 2017 public offering [Member]          
Statement Line Items [Line Items]          
Exercise price, warrants issued | $ / shares   $ 1.2625      
Share price   $ 0.97      
Risk-free interest   2.22%      
Estimated life (in years) (Year)   5 years      
Expected volatility   93.52%      
Warrants issued to broker in February 2017 public offering [member]          
Statement Line Items [Line Items]          
Exercise price, warrants issued | $ / shares     $ 2.15    
Share price     $ 1.70    
Risk-free interest     0.79%    
Estimated life (in years) (Year)     1 year    
Expected volatility     112.09%    
Dividend