Defined Benefit Pension Plan (Tables)

6 Months Ended

Jun. 30, 2017

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

Net periodic pension benefit for the three and six months ended June 30 consisted of the following components:

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
	(Dollars in thousands)
Interest cost on projected benefit obligation	$	172		$	175		$	344		$	350
Expected return on plan assets	(243		)	(259		)	(486		)	(518		)
Amortization of net loss	51			41			102			82
Net periodic benefit	$	(20	)	$	(43	)	$	(40	)	$	(86	)