Employee Benefit Plans Components of Net Periodic Pension Cost (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Components of net periodic pension cost:
Interest cost	$ 1,207	$ 1,469
Expected return on plan assets	(1,005)	(1,133)
Amortization of net (gain) loss	(1,052)	(581)
Service cost	0	0
Net periodic pension cost	$ (850)	$ (245)