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Fair Value Measurements (Tables)
 6 Months Ended
Jun. 30, 2016
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 June 30, 2016  
    Level 1     Level 2     Level 3     Total  
Escrow deposits   $ 579     $ —     $ —     $ 579  
Total   $ 579     $ —     $ —     $ 579  

 

    As at December 31, 2015  
    Level 1     Level 2     Level 3     Total  
Restricted deposits – current   $ 2,172     $ —     $ —     $ 2,172  
Restricted deposits –non-current     2,951       —       —       2,951  
Derivative liabilities     (4 )     —       —       (4 )
Total   $ 5,119     $ —     $ —     $ 5,119