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Fair Value Measurements (Tables)
 12 Months Ended
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