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EMPLOYEE RETIREMENT PLANS (Details 3)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]    
Discount rate for determining projected benefit obligation 4.39% 3.71%
Long-term rate of return on plan assets 7.00% 7.00%
Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate for determining projected benefit obligation 3.70% 4.33%
Discount rate in effect for determining service cost 0.00% 0.00%
Discount rate in effect for determining interest cost 3.33% 3.63%
Long-term rate of return on plan assets 7.00% 7.00%
Supplemental Employee Retirement Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate for determining projected benefit obligation 3.75% 4.41%
Discount rate in effect for determining service cost 3.83% 4.62%
Discount rate in effect for determining interest cost 3.51% 3.92%
Long-term rate of return on plan assets 0.00% 0.00%