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PENSION PLAN (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Defined Benefit Plan [Abstract]    
Current service cost, net of employee contributions $ 42 $ 46
Interest cost on accrued benefit obligation 103 102
Expected return on plan assets (163) (163)
Amortization of transitional obligation 10 10
Amortization of past service costs 7 7
Amortization of net actuarial gain 47 37
Total cost of benefit $ 46 $ 39