Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Plans

Schedule of components of net periodic pension expense

	Three Months Ended
	March 31,
(Dollars in thousands)	2019		2018
Interest cost	$	289	$	270
Service cost		30		19
Expected return on plan assets		(590)		(582)
Recognized net actuarial loss		121		194
Net periodic pension benefit	$	(150)	$	(99)