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Fair Value Measurements and Fair Values of Financial Instruments (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		$ 8,371,000
Valuation allowance		2,784,000
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	$ 0	0
Individually Evaluated Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses (recoveries) on impaired loans	1,400,000	(5,000,000.0)	$ 5,700,000
(Level 3) Significant Unobservable Inputs [Member] | Individually Evaluated Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	27,800,000	8,400,000
Valuation allowance	$ 4,200,000	$ 2,800,000

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-Topic 820
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Amount of allowance for credit losses related to recorded investment.

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Fair value of financial and nonfinancial obligations.

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