Defined Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2017

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

Schedule of Net Periodic Benefit Costs

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