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, 2024	Dec. 31, 2023
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	4,979	$ 5,339
Service cost	138	158
Interest cost	258	263
Plan gain	(391)	(336)
Benefits paid	(484)	(445)
Benefit obligation at end of year	4,500	4,979
Change in plan assets [Abstract]
Employer contribution	484	445
Benefits paid	(484)	(445)
Fair value of plan assets at end of year	0	0
Reconciliation of funded status [Abstract]
Funded status	(4,500)	(4,979)
Unrecognized net plan loss	(322)	69
Unrecognized prior service cost	29	31
Net amount recognized	(4,793)	(4,879)
Amounts recognized in the consolidated balance sheets consist of [Abstract]
Accrued benefit liability	(4,500)	(4,979)
Accumulated other comprehensive loss	(293)	100
Net amount recognized	(4,793)	(4,879)
Directors' Retirement Plan [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	424	560
Service cost	0	0
Interest cost	20	24
Plan gain	(2)	(100)
Benefits paid	(45)	(60)
Benefit obligation at end of year	397	424
Change in plan assets [Abstract]
Employer contribution	45	60
Benefits paid	(45)	(60)
Fair value of plan assets at end of year	0	0
Reconciliation of funded status [Abstract]
Funded status	(397)	(424)
Unrecognized net plan loss	(142)	(172)
Net amount recognized	(539)	(596)
Amounts recognized in the consolidated balance sheets consist of [Abstract]
Accrued benefit liability	(397)	(424)
Accumulated other comprehensive loss	(142)	(172)
Net amount recognized	$ (539)	$ (596)