Retirement Plans (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets		$ 12,226	$ 11,393	$ 10,988
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		$ (265)	$ (191)
Interest cost		271	355
Defined benefit plan, expected return on plan assets		(709)	(684)
Defined contribution plan, employer discretionary contribution amount		200	0
Scenario, Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension cost	$ (357)
Interest cost	300
Defined benefit plan, expected return on plan assets	(764)
Amortization of net loss	$ 107
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets		400	$ 500
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets		$ 8,800
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		$ 3,000
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