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PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS (Tables)
3 Months Ended
Mar. 31, 2017
Pension Plan  
PENSION PLANS  
Schedule of components of net periodic benefit cost
The following table sets forth the components of net periodic benefit cost for the Pension Plan for the periods indicated:
 
 
Three Months Ended
March 31,
(dollars in thousands)
2017
 
2016
Interest cost
$
229

 
$
343

Expected return on plan assets
(264
)
 
(439
)
Amortization of net actuarial loss
296

 
354

Net periodic cost
$
261

 
$
258

SERPs  
PENSION PLANS  
Schedule of components of net periodic benefit cost
The following table sets forth the components of net periodic benefit cost for the SERPs for the periods indicated:
 
 
Three Months Ended
March 31,
(dollars in thousands)
2017
 
2016
Interest cost
$
115

 
$
116

Amortization of net actuarial loss
26

 
13

Amortization of net transition obligation
4

 
4

Amortization of prior service cost
4

 
5

Net periodic cost
$
149

 
$
138