Employee Benefit Plans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Components of Net Periodic Benefit Cost
Service cost	$ 0	$ 0
Interest cost	58	51
Expected return on plan assets	(68)	(64)
Recognized loss due to settlement	19	25
Recognized net actuarial loss	65	68
Net periodic cost	$ 74	$ 80