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Note 26 - Share-based Expenses - Option Activity (Details) | 12 Months Ended
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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.

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