Supplemental Compensation Plans, Change in Benefit Obligation, Plan Assets, Funded Status and Amounts Recognized in Balance Sheets (Details) - Pension Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Amounts recognized in the consolidated balance sheets consist of [Abstract]
Unrecognized net actuarial loss and prior service cost expected to be recognized in next fiscal year	$ 2
Salary Continuation Plan and SERP [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	5,339	$ 6,581
Service cost	158	278
Interest cost	263	175
Plan gain	(336)	(1,423)
Benefits paid	(445)	(272)
Benefit obligation at end of year	4,979	5,339
Change in plan assets [Abstract]
Employer contribution	445	272
Benefits paid	(445)	(272)
Fair value of plan assets at end of year	0	0
Reconciliation of funded status [Abstract]
Funded status	(4,979)	(5,339)
Unrecognized net plan loss (gain)	69	406
Unrecognized prior service cost	31	32
Net amount recognized	(4,879)	(4,901)
Amounts recognized in the consolidated balance sheets consist of [Abstract]
Accrued benefit liability	(4,979)	(5,339)
Accumulated other comprehensive (gain) loss	100	438
Net amount recognized	(4,879)	(4,901)
Directors' Retirement Plan [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	560	710
Service cost	0	0
Interest cost	24	14
Plan gain	(100)	(94)
Benefits paid	(60)	(70)
Benefit obligation at end of year	424	560
Change in plan assets [Abstract]
Employer contribution	60	70
Benefits paid	(60)	(70)
Fair value of plan assets at end of year	0	0
Reconciliation of funded status [Abstract]
Funded status	(424)	(560)
Unrecognized net plan loss (gain)	(172)	(76)
Net amount recognized	(596)	(636)
Amounts recognized in the consolidated balance sheets consist of [Abstract]
Accrued benefit liability	(424)	(560)
Accumulated other comprehensive (gain) loss	(172)	(76)
Net amount recognized	$ (596)	$ (636)