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Benefit Plans (Components of net periodic benefit cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Retirement Benefits [Abstract]
Interest cost on benefit obligation	$ 224	$ 233	$ 306
Expected return on plan assets	(490)	(486)	(488)
Amortization of unrecognized actuarial net loss	216	222	206
Settlement loss	109	0	152
Net periodic cost for the year	$ (59)	$ 31	$ (176)

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Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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