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EMPLOYEE BENEFITS (Tables)
9 Months Ended
Sep. 30, 2017
EMPLOYEE BENEFITS  
Schedule of components of net periodic benefit cost and other amounts recognized in Other Comprehensive Income
    Three Months Ended September 30,     Nine Months Ended September 30,  
    Pension Benefits     SERP Benefits     Pension Benefits     SERP Benefits  
(In thousands)   2017     2016     2017     2016     2017     2016     2017     2016  
Service cost   $ 293     $ 288     $ 54     $ 44     $ 878     $ 865     $ 159     $ 132  
Interest cost     185       199       26       27       555       596       78       79  
Expected return on plan assets     (521 )     (482 )     -       -       (1,561 )     (1,447 )     -       -  
Amortization of net loss     113       102       12       6       338       305       38       20  
Amortization of prior service credit     (20 )     (20 )     -       -       (58 )     (58 )     -       -  
Amortization of transition obligation     -       -       7       7       -       -       21       21  
Net periodic benefit cost   $ 50     $ 87     $ 99     $ 84     $ 152     $ 261     $ 296     $ 252