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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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Amount excluding accrued interest, of allowance for credit loss on 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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