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Shares (Tables) | 12 Months Ended
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Dec. 31, 2016
Equity [Abstract] |
Schedule of common shares issued and outstanding | Issued and outstanding:
|  | Voting common shares |  |  | Treasury shares |  |  | Common shares outstanding, net of treasury shares |
Issued and outstanding at December 31, 2014 |  | 34,923,916 |  |  | (589,892 | ) |  | 34,334,024 |
Issued upon exercise of stock options (note 21(b)) |  | 30,080 |  |  | — |  |  | 30,080 |
Purchase of treasury shares for settlement of certain equity classified stock-based compensation |  | — |  |  | (687,314 | ) |  | (687,314 | )
Settlement of certain equity classified stock-based compensation |  | — |  |  | 20,403 |  |  | 20,403 |
Retired through Share Purchase Program (note 17(c)) |  | (1,803,715 | ) |  | — |  |  | (1,803,715 | )
Issued and outstanding at December 31, 2015 |  | 33,150,281 |  |  | (1,256,803 | ) |  | 31,893,478 |
Issued upon exercise of stock options (note 21(b)) |  | 102,040 |  |  | — |  |  | 102,040 |
Purchase of treasury shares for settlement of certain equity classified stock-based compensation |  | — |  |  | (1,043,998 | ) |  | (1,043,998 | )
Settlement of certain equity classified stock-based compensation |  | — |  |  | 87,554 |  |  | 87,554 |
Retired through Share Purchase Programs (note 17(c)) |  | (2,733,414 | ) |  | — |  |  | (2,733,414 | )
Issued and outstanding at December 31, 2016 |  | 30,518,907 |  |  | (2,213,247 | ) |  | 28,305,660 |
Schedule of net (loss) income per share | Net loss per share
Year ended December 31, |  | 2016 |  |  | 2015 |
Net loss |  | $ | (445 | ) |  | $ | (7,470 | )
Weighted average number of common shares (no dilutive effect) |  | 29,965,899 |  |  | 32,758,088 |
Basic per share information (No dilutive effect) |  |  |  |
Net loss |  | $ | (0.01 | ) |  | (0.23 | )

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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