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Defined Benefit Plans
 9 Months Ended
Sep. 30, 2017
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract]  
Defined Benefit Plans

(7)

Defined Benefit Plans

Mid Penn has an unfunded noncontributory defined benefit retirement plan for directors.  The plan provides defined benefits based on years of service.  In addition, Mid Penn sponsors a defined benefit health care plan that provides post-retirement medical benefits and life insurance to qualifying full-time employees.  These health care and life insurance plans are noncontributory.  A December 31 measurement date for the plans is used.

The components of net periodic benefit costs from these defined benefit plans are as follows:

 

 

Three Months Ended September 30,

 

(Dollars in thousands)

Pension Benefits

 

 

Other Benefits

 

 

2017

 

 

2016

 

 

2017

 

 

2016

 

Service cost

$

9

 

 

$

9

 

 

$

1

 

 

$

1

 

Interest cost

 

11

 

 

 

12

 

 

 

5

 

 

 

5

 

Amortization (accretion) of prior service cost

 

4

 

 

 

8

 

 

 

(6

)

 

 

3

 

Net periodic benefit cost

$

24

 

 

$

29

 

 

$

-

 

 

$

9

 

 

 

Nine Months Ended September 30,

 

(Dollars in thousands)

Pension Benefits

 

 

Other Benefits

 

 

2017

 

 

2016

 

 

2017

 

 

2016

 

Service cost

$

26

 

 

$

26

 

 

$

3

 

 

$

3

 

Interest cost

 

32

 

 

 

35

 

 

 

15

 

 

 

17

 

Amortization (accretion) of prior service cost

 

11

 

 

 

33

 

 

 

(17

)

 

 

94

 

Net periodic benefit cost

$

69

 

 

$

94

 

 

$

1

 

 

$

114