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PENSION PLAN (Details 5) - Pension Plan [Member]
Dec. 31, 2017
Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]    
Allocation at December 31 100.00% 100.00%
Target allocation for 2018 100.00%  
Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Allocation at December 31 34.00% 37.00%
Target allocation for 2018 34.00%  
Fixed Income Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Allocation at December 31 57.00% 53.00%
Target allocation for 2018 57.00%  
Real Estate [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Allocation at December 31 7.00% 8.00%
Target allocation for 2018 7.00%  
Other Asset Categories [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Allocation at December 31 2.00% 2.00%
Target allocation for 2018 2.00%