Retirement Plans (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets		$ 9,642	$ 12,226	$ 11,393
Favorable rate of return equal to or greater than average inflation rate		5.00%
Investment objective achievement period		60 years
Single stock issue restricted among total portfolio value		5.00%
Securities held in mutual or commingled funds		90.00%
Expected return on plan assets		6.50%	6.50%
Net periodic pension cost		$ (356)	$ (265)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Cost and Expense, Operating	Other Cost and Expense, Operating
Interest cost		$ 300	$ 271
Defined benefit plan, expected return on plan assets		(763)	(709)
Defined contribution plan, employer discretionary contribution amount		100	200
Scenario, Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension cost	$ (28)
Interest cost	445
Defined benefit plan, expected return on plan assets	(597)
Amortization of net loss	$ 124
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets		300	$ 400
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets		$ 6,700
Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations range		45.00%
Equity Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target plan asset allocations range		75.00%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets		$ 2,600
Standard Commercial P & C Business Unit [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum hours of service to participate within defined benefit plan		1000 hours