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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2017
Fair Value Disclosures [Abstract] |
Schedule of Fair Value Measurements | Financial items measured at fair value are classified in the table below in accordance with the hierarchy established in applicable accounting principles.
|  | As at December 31, 2016 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Escrow deposits – continuing operations |  | $ | 579 |  |  |  | — |  |  |  | — |  |  | $ | 579 |
Escrow deposits – discontinued operations |  |  | 100 |  |  |  | — |  |  |  | — |  |  |  | 100 |
Total |  | $ | 679 |  |  | $ | — |  |  | $ | — |  |  | $ | 679 |

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