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Debt Securities (Narrative) (Details)	6 Months Ended
	Jun. 30, 2023 USD ($) item	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items]
Realized gains or losses on sales and calls	$ 0	$ 0
Securities pledged to secure available borrowings with the Federal Reserve Bank and Federal Home Loan Bank	8,900,000		$ 9,800,000
Investments in available-for-sale securities (at fair value)	27,656,000		28,600,000
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss	0	0
Interest Receivable	5,007,000		6,597,000
Nonperforming Financial Instruments [Member]
Debt Securities, Available-for-sale [Line Items]
Investments in available-for-sale securities (at fair value)	0	$ 0
Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Interest Receivable	$ 176,000
State And Municipal Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Securities in portfolio | item	19
Securities in portfolio, unrealized loss position | item	15
Aggregate Unrealized Losses, Percent Of Amortized Cost	5.50%
Investments in available-for-sale securities (at fair value)	$ 11,196,000		11,071,000
Asset-Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Securities in portfolio, unrealized loss position | item	4
Aggregate Unrealized Losses, Percent Of Amortized Cost	11.90%
Investments in available-for-sale securities (at fair value)	$ 6,120,000		6,274,000
Government Mortgage-Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Securities in portfolio, unrealized loss position | item	33
Aggregate Unrealized Losses, Percent Of Amortized Cost	8.70%
Investments in available-for-sale securities (at fair value)	$ 10,340,000		$ 11,255,000

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