Retirement Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Employee contribution	3.00%
Plan expenses	$ 222,000	$ 238,000
Supplemental Employee Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	(148,000)	697,000
Unfunded benefit obligation	6,100,000	6,500,000
Defined benefit plan change in benefit obligation [Roll Forward]
Benefit obligation, January 1	6,482,000	5,949,000
Service (benefit)/cost	(498,000)	361,000
Interest cost	350,000	336,000
Benefits paid	(233,000)	(164,000)
Accrued liability at December 31	6,101,000	6,482,000
Defined benefit plan net periodic benefit cost [Abstract]
Service (benefit)/cost	(498,000)	361,000
Interest cost	350,000	336,000
Net periodic benefit cost	$ (148,000)	$ 697,000
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Discount rate of benefit obligation	5.50%	5.50%
Estimated annual benefit payments for 2022	$ 480,228
Estimated annual benefit payments for 2023	721,410
Estimated annual benefit payments for 2024	721,410
Estimated annual benefit payments for 2025	721,410
Estimated annual benefit payments for 2026	721,410
Estimated annual benefit payments, thereafter	$ 4,900,000