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PENSION PLAN (Tables)
6 Months Ended
Jun. 30, 2019
Defined Benefit Plan [Abstract]  
Schedule of pension plan expenses

The components of the expense the Company incurred under the pension plan are as follows:

 

    Three Months Ended     Six Months Ended  
    June 30,     June 30,  
    2019     2018     2019     2018  
Current service cost, net of employee contributions   $ 14     $ 14     $ 29     $ 31  
Interest cost on accrued benefit obligation     26       25       52       50  
Expected return on plan assets     (42 )     (42 )     (82 )     (85 )
Amortization of transitional obligation     3       1       6       3  
Amortization of past service costs     2             4       2  
Amortization of net actuarial gain     11       14       24       28  
Total cost of benefit   $ 14     $ 12     $ 33     $ 29