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EMPLOYEE BENEFITS (Tables)
6 Months Ended
Jun. 30, 2017
EMPLOYEE BENEFITS  
Schedule of components of net periodic benefit cost and other amounts recognized in Other Comprehensive Income
  Three Months Ended June 30,  Six Months Ended June 30, 
  Pension Benefits  SERP Benefits  Pension Benefits  SERP Benefits 
(In thousands) 2017  2016  2017  2016  2017  2016  2017  2016 
Service cost $293  $286  $52  $44  $585  $577  $105  $88 
Interest cost  185   201   26   26   370   397   52   52 
Expected return on plan assets  (520)  (510)  -   -   (1,040)  (965)  -   - 
Amortization of net loss  112   104   13   7   225   203   26   14 
Amortization of prior service credit  (19)  (19)  -   -   (38)  (38)  -   - 
Amortization of transition obligation  -   -   7   7   -   -   14   14 
Net periodic benefit cost $51  $62  $98  $84  $102  $174  $197  $168