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Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Dec. 31, 2018 USD ($)
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Fixed maturities, available-for-sale, amortized cost | $ 82,647 |  | $ 87,714
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities | 0 | $ 0 |
Government obligations |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Fixed maturities, available-for-sale, amortized cost | 1,013 |  | 1,023
Available-for-sale, at fair value, Gross Unrealized Gains | 0 |  | 0
Available-for-sale, at fair value, Gross Unrealized Losses | 1 |  | 7
Available-for-sale, at fair value, Estimated Fair Value | 1,012 |  | 1,016
General Obligations Of U.S. States, Territories And Political Subdivisions |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Fixed maturities, available-for-sale, amortized cost | 20,007 |  | 19,518
Available-for-sale, at fair value, Gross Unrealized Gains | 756 |  | 229
Available-for-sale, at fair value, Gross Unrealized Losses | 0 |  | 143
Available-for-sale, at fair value, Estimated Fair Value | 20,763 |  | 19,604
Special Revenue Obligations Of U.S. States, Territories And Political Subdivisions |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Fixed maturities, available-for-sale, amortized cost | 52,626 |  | 56,675
Available-for-sale, at fair value, Gross Unrealized Gains | 2,361 |  | 1,237
Available-for-sale, at fair value, Gross Unrealized Losses | 18 |  | 329
Available-for-sale, at fair value, Estimated Fair Value | $ 54,969 |  | $ 57,583
Number of Special Revenue Bonds | 60 |  | 60
Corporate Debt Securities |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Fixed maturities, available-for-sale, amortized cost | $ 9,001 |  | $ 10,498
Available-for-sale, at fair value, Gross Unrealized Gains | 565 |  | 303
Available-for-sale, at fair value, Gross Unrealized Losses | 4 |  | 47
Available-for-sale, at fair value, Estimated Fair Value | 9,562 |  | 10,754
Total Fixed Maturities |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |
Fixed maturities, available-for-sale, amortized cost | 82,647 |  | 87,714
Available-for-sale, at fair value, Gross Unrealized Gains | 3,682 |  | 1,769
Available-for-sale, at fair value, Gross Unrealized Losses | 23 |  | 526
Available-for-sale, at fair value, Estimated Fair Value | $ 86,306 |  | $ 88,957

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