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Pension Plan (Tables)
 9 Months Ended
Sep. 30, 2017
Retirement Benefits [Abstract]  
Activity in the Defined Benefit Plan
Information pertaining to the activity in the Company’s defined benefit plan, using the latest available actuarial valuations with a measurement date of September 30, 2017 and 2016 is as follows:

(Dollars in thousands)
 
Three Months Ended
September 30, 2017
 
Three Months Ended
September 30, 2016
 
Nine Months Ended
September 30, 2017
 
Nine Months Ended
September 30, 2016
Service cost
 
$
—

 
$
—

 
—

 
—

Interest cost
 
90

 
92

 
270

 
276

Expected Return on Plan Assets
 
(86
)
 
(83
)
 
(258
)
 
(248
)
Amortization of Net Actuarial Loss
 
60

 
59

 
180

 
177

Amortization of Prior Service Cost
 
—

 
—

 
—

 
—

     Net Periodic Benefit Cost
 
$
64

 
$
68

 
192

 
205

Contributions Paid
 
$
145

 
$
62

 
261

 
142