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14. POST-EMPLOYMENT BENEFITS (Tables)
 12 Months Ended
Dec. 31, 2017
Post-employment Benefits Tables  
Post-employment benefits
        At December 31   At December 31
(in thousands)       2017   2016
             
Accrued benefit obligation     $ 1,886 $ 1,832
      $ 1,886 $ 1,832
             
Post-employment benefits -by duration:            
Current     $ 199 $ 186
Non-current       1,687   1,646
      $ 1,886 $ 1,832
Post-employment benefits continuity
(in thousands)       2017   2016
             
Balance-January 1     $ 1,832 $ 2,389
Accretion       57   82
Benefits paid       (130)   (137)
Experience loss (gain) adjustment       -   (580)
Foreign exchange       127   78
Balance-December 31     $ 1,886 $ 1,832