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Investments In Securities and Fair Value (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details) $ in Thousands | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($)
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Total, amortized cost | $ 56,299 | $ 75,511
Fixed maturity securities, available-for-sale, at fair value (amortized cost: September 30, 2022: $56,299; December 31, 2021: $75,511) | 55,307 | 79,791
General obligations of U.S. states, territories and political subdivisions |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total, amortized cost | 13,677 | 16,669
Debt securities, available-for-sale, accumulated gross unrealized gain, before tax | 0 | 922
Debt securities, available-for-sale, accumulated gross unrealized loss, before tax | 273 | 0
Fixed maturity securities, available-for-sale, at fair value (amortized cost: September 30, 2022: $56,299; December 31, 2021: $75,511) | 13,404 | 17,591
Special revenue issuer obligations of U.S. states, territories and political subdivisions |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total, amortized cost | 37,939 | 41,753
Debt securities, available-for-sale, accumulated gross unrealized gain, before tax | 53 | 2,453
Debt securities, available-for-sale, accumulated gross unrealized loss, before tax | 1,099 | 2
Fixed maturity securities, available-for-sale, at fair value (amortized cost: September 30, 2022: $56,299; December 31, 2021: $75,511) | $ 36,893 | $ 44,204
Number of Special Revenue Bonds | 40 | 40
Corporate debt securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total, amortized cost | $ 4,683 | $ 17,089
Debt securities, available-for-sale, accumulated gross unrealized gain, before tax | 344 | 955
Debt securities, available-for-sale, accumulated gross unrealized loss, before tax | 17 | 48
Fixed maturity securities, available-for-sale, at fair value (amortized cost: September 30, 2022: $56,299; December 31, 2021: $75,511) | 5,010 | 17,996
Total fixed maturities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total, amortized cost | 56,299 | 75,511
Debt securities, available-for-sale, accumulated gross unrealized gain, before tax | 397 | 4,330
Debt securities, available-for-sale, accumulated gross unrealized loss, before tax | 1,389 | 50
Fixed maturity securities, available-for-sale, at fair value (amortized cost: September 30, 2022: $56,299; December 31, 2021: $75,511) | $ 55,307 | $ 79,791

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