Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net periodic benefit cost (income) for the year:
Service cost	$ 22	$ 26
Interest cost	44	40
Net periodic benefit cost	$ 66	$ 66
Pension Plan | Minimum
Pension and Other Postretirement Benefit Contributions
Requisite service period for receiving benefits under the plan			1 year
Supplemental Employee Retirement Plan (SERP)
Net periodic benefit cost (income) for the year:
Service cost			$ 44	$ 51
Interest cost			87	81
Net periodic benefit cost			$ 131	$ 132