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Use of Estimates (Narrative) (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
Retained Earnings (Accumulated Deficit)	$ 31,049,000	$ 31,034,000
Allowance for credit losses on held-to-maturity securities	0
Debt Securities, Available-for-Sale, Allowance for Credit Loss	0
Interest Receivable	2,574,000	2,736,000
Cumulative Effect, Period of Adoption, Adjustment [Member]
Financing Receivable, Recorded Investment [Line Items]
Retained Earnings (Accumulated Deficit)		$ (1,600,000)
Available-for-sale Debt securities [Member]
Financing Receivable, Recorded Investment [Line Items]
Interest Receivable	994,000
Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Interest Receivable	1,600,000
Securities Held to Maturity [Member]
Financing Receivable, Recorded Investment [Line Items]
Interest Receivable	$ 16,000

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