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Note 21 - Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Statement Line Items [Line Items] |
Earnings per share [text block] |
(In number of shares) |  | Note |  | 2017 |  |  | 2016 |  |  | 2015 |
Issued shares at beginning of year |  | 19 |  |  | 52,787,428 |  |  |  | 52,078,908 |  |  |  | 52,117,908 |
Share consolidation (note 19) |  |  |  |  | (42,135,492 | ) |  |  | (41,663,126 | ) |  |  | (41,694,326 | )
Issued shares post consolidation |  |  |  |  | 10,651,936 |  |  |  | 10,415,782 |  |  |  | 10,423,582 |
Weighted average shares repurchased |  |  |  |  | (60,978 | ) |  |  | - |  |  |  | - |
Weighted average cancellation during the year |  |  |  |  | - |  |  |  | - |  |  |  | (4,565 | )
Weighted average shares issued |  |  |  |  | 16,924 |  |  |  | 41,460 |  |  |  | - |
Weighted average number of shares at December 31 |  |  |  |  | 10,607,882 |  |  |  | 10,457,242 |  |  |  | 10,419,017 |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Profit attributable to shareholders |  |  | 9,384 |  |  |  | 8,526 |  |  |  | 4,779 |
Blanket Mine Employee Trust Adjustment |  |  | (210 | ) |  |  | (238 | ) |  |  | (100 | )
Adjusted profit attributable to shareholders |  |  | 9,174 |  |  |  | 8,288 |  |  |  | 4,679 |
Basic earnings per share - $ |  |  | 0.86 |  |  |  | 0.79 |  |  |  | 0.45 |
Weighted average number of shares (In number of shares) |  | 2017 |  |  | 2016 |  |  | 2015 |
Weighted average shares at December 31 |  |  | 10,607,882 |  |  |  | 10,457,242 |  |  |  | 10,419,017 |
Effect of dilutive options |  |  | 9,622 |  |  |  | 23,449 |  |  |  | 21,634 |
Weighted average number of shares (diluted) at December 31 |  |  | 10,617,504 |  |  |  | 10,480,691 |  |  |  | 10,440,651 |
Diluted earnings per share - $ |  |  | 0.86 |  |  |  | 0.79 |  |  |  | 0.45 |

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