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Note 26 - Share-based Expenses - Option Activity (Details)
 12 Months Ended
Dec. 31, 2018
CAD ($)
Dec. 31, 2017
CAD ($)
Dec. 31, 2016
CAD ($)
Statement Line Items [Line Items]      
Number of options outstanding and exercisable 28,000 92,280 448,184
Weighted average exercise price, options outstanding and exercisable $ 9.55 $ 5.85 $ 5.40
Number of options expired or forfeited     (232,200)
Weighted average exercise price, expired or forfeited     $ 6.50
Number of options granted 10,000 [1] 5,000 [1] 18,000
Weighted average exercise price, granted $ 9.30 $ 8.10 $ 11.50
Number of options exercised (69,280) (141,704)
Weighted average exercise price, exercised $ 4.50 $ 4.15
Number of options outstanding and exercisable 38,000 28,000 92,280
Weighted average exercise price, options outstanding and exercisable $ 9.48 $ 9.55 $ 5.85
[1] Amounts stated after the 1:5 share consolidation, refer note 19.