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ACCRUED EXPENSES AND OTHER PAYABLES (Tables)
 12 Months Ended
Dec. 31, 2016
Payables and Accruals [Abstract]  
Accrued Expenses and Other Payables
     As at December 31,  
     2015      2016  

Engineering accruals

      807        466  

Professional fees

      642        583  

Government grants

      288        263  

Income taxes payable, net

      830        1,489  

Other

      1,066        1,214  
  

 

 

     

 

 

  
   $ 3,633      $ 4,015