Supplemental Compensation Plans, Directors' Retirement Plan (Details) - Pension Plan [Member] - Directors' Retirement Plan [Member] - Directors [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Supplemental Compensation Plans [Abstract]
Defined Benefit Plan, Funding Status [Extensible List]	Defined Benefit Plan, Funding Status [Extensible List]
Duration for benefit payment after retirement age	10 years
Retirement age	65 years
Reduced benefit age	55 years
Years of services for reduced benefit	10 years
Minimum [Member]
Supplemental Compensation Plans [Abstract]
Directors' retirement benefit per year of service	$ 1
Maximum [Member]
Supplemental Compensation Plans [Abstract]
Directors' retirement benefit per year of service	$ 15