Employee Benefit Plans, Noncontributory Defined Benefit Pension Plan (Details) - Pension Plan [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Components of net periodic benefit cost [Abstract]
Service cost	$ 78	$ 110
Interest cost	59	82
Expected return on plan assets	(203)	(252)
Net amortization and deferral	36	91
Net periodic benefit cost	(30)	$ 31
Expected employer contribution to pension plan	$ 0