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Pension Plan (Tables)
 6 Months Ended
Jun. 30, 2017
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs [Table Text Block]

 

 

 

 
 

Three months ended June 30

  

Six months ended June 30

In thousands

2017

 

 2016

 

 2017

 

 2016

Interest cost

$

117

 

$

121

 

$

233

 

$

241

Expected return on plan assets

  

(180)

    

(168)

    

(359)

    

(336)

Amortization of net actuarial loss

 

55

 

 

48

 

 

109

 

 

96

Net periodic pension cost

$

(8)

 

$

1

 

$

(17)

 

$

1