Fair Values Of Financial Instruments (Fair Value Measurements, Recurring) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities Available for Sale	$ 87,648	$ 91,715
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities Available for Sale	87,648	91,715
Marketable Equities	12,825	17,686
Total Securities	100,473	109,401
(Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities Available for Sale
Marketable Equities	12,825	17,686
(Level 1) Quoted Prices In Active Markets For Identical Assets [Member] \| Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities Available for Sale
Marketable Equities	12,825	17,686
Total Securities	12,825	17,686
(Level 2) Significant Other Observable Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities Available for Sale	87,648	91,715
Marketable Equities
(Level 2) Significant Other Observable Inputs [Member] \| Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities Available for Sale	87,648	91,715
Marketable Equities
Total Securities	87,648	91,715
(Level 3) Significant Unobservable Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities Available for Sale
Marketable Equities
(Level 3) Significant Unobservable Inputs [Member] \| Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities Available for Sale
Marketable Equities
Total Securities

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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