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Significant Accounting Policies And Estimates (Narrative) (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2023
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Retained Earnings (Accumulated Deficit) | $ 31,034,000 | $ 34,931,000
Allowance for credit losses on held-to-maturity securities | 0 | 0
Interest Receivable | 2,736,000 | 2,707,000
Allowance for credit losses on available for sale securities | 0 | 0
Other than temporarily impairment | 0 |
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Retained Earnings (Accumulated Deficit) | $ (1,600,000) |
Available-for-sale Debt securities [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Interest Receivable |  | 1,090,000.00
Loans [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Interest Receivable |  | 1,620,000
Securities Held to Maturity [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Interest Receivable |  | $ 16,000

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