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Note 27 - Share-based Expenses - Option Activity (Details)
 12 Months Ended
May 30, 2018
 [1]
Feb. 27, 2018
Dec. 31, 2019
CAD ($)
$ / shares
Dec. 31, 2018
CAD ($)
$ / shares
Dec. 31, 2017
CAD ($)
$ / shares
Statement Line Items [Line Items]          
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
Number of options granted 5,000 10,000 10,000 5,000
Weighted average exercise price, granted (in CAD per share) | $ / shares     $ 9.30 $ 8.10
Number of options exercised     (69,280)
Weighted average exercise price, exercised (in CAD per share) | $ / shares     $ 4.50
Number of options outstanding and exercisable     38,000 38,000 28,000
Weighted average exercise price, options outstanding and exercisable | $     $ 9.48 $ 9.48 $ 9.55
[1] Amounts stated after the 1:5 share consolidation effected on June 26, 2017.