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Finance income and expense (Tables) | 12 Months Ended
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Dec. 31, 2018
Analysis of income and expense [abstract] |
Disclosure of detailed information of finance income and expense |
| 2018 |  |  | 2017 |
Employee future benefit plan expense (note 19) | $ | (226 | ) |  | $ | (230 | )
Pension administration expense | (117 | ) |  | (118 | )
Investment and other income | 1,034 |  |  | 417 |
Other income (loss) | (62 | ) |  | 19 |
Foreign exchange gain (loss) | (1,078 | ) |  | 1,692 |
Finance income (loss) and other | $ | (449 | ) |  | $ | 1,780 |
Finance expense | $ | (503 | ) |  | $ | (732 | )

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