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Summary Of Significant Accounting Policies (Narrative) (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) item store $ / shares	Dec. 31, 2021 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number Of Subsidiaries | item	1
Number of Stores | store	22
Restricted stock	$ 644,000	$ 495,000
Restricted stock per share | $ / shares	$ 100
Derivative Liability, Not Subject to Master Netting Arrangement	$ 0
Fair value of trust assets under management	1,000,000,000.0	1,100,000,000
Loans modified	2,950,000	$ 5,564,000
Federal Home Loan Bank of Pittsburgh [Member]
Summary Of Significant Accounting Policies [Line Items]
Restricted stock	644,000
FHLB [Member]
Summary Of Significant Accounting Policies [Line Items]
Restricted stock	30,000
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Commercial Loans Not Included In Reserve Analysis	$ 250,000,000

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Commercial Loans Not Included In Reserve Analysis

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Summary Of Significant Accounting Policies [Line Items]

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The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, not subject to a master netting arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Amount of financing receivable modified as troubled debt restructuring.

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