Employee Benefit Plans, Noncontributory Defined Benefit Pension Plan (Details) - Pension Plan [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Components of net periodic benefit cost [Abstract]
Service cost	$ 82	$ 78	$ 247	$ 256
Interest cost	83	123	249	401
Expected return on plan assets	(215)	(187)	(646)	(595)
Partial Settlement	0	0	307	0
Net amortization and deferral	59	60	175	181
Net periodic benefit cost	9	$ 74	332	$ 243
Expected employer contribution to pension plan	$ 250,000		$ 250,000