Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details) $ in Thousands	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Debt and Equity Securities, FV-NI [Line Items]
Fixed maturities, available-for-sale, amortized cost	$ 86,539	$ 87,714
Government obligations
Debt and Equity Securities, FV-NI [Line Items]
Fixed maturities, available-for-sale, amortized cost	1,018	1,023
Available-for-sale, at fair value, Gross Unrealized Gains	0	0
Available-for-sale, at fair value, Gross Unrealized Losses	4	7
Available-for-sale, at fair value, Estimated Fair Value	1,014	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	21,627	19,518
Available-for-sale, at fair value, Gross Unrealized Gains	527	229
Available-for-sale, at fair value, Gross Unrealized Losses	11	143
Available-for-sale, at fair value, Estimated Fair Value	22,143	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	53,894	56,675
Available-for-sale, at fair value, Gross Unrealized Gains	1,827	1,237
Available-for-sale, at fair value, Gross Unrealized Losses	73	329
Available-for-sale, at fair value, Estimated Fair Value	$ 55,648	$ 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	$ 10,000	$ 10,498
Available-for-sale, at fair value, Gross Unrealized Gains	444	303
Available-for-sale, at fair value, Gross Unrealized Losses	17	47
Available-for-sale, at fair value, Estimated Fair Value	10,427	10,754
Total Fixed Maturities
Debt and Equity Securities, FV-NI [Line Items]
Fixed maturities, available-for-sale, amortized cost	86,539	87,714
Available-for-sale, at fair value, Gross Unrealized Gains	2,798	1,769
Available-for-sale, at fair value, Gross Unrealized Losses	105	526
Available-for-sale, at fair value, Estimated Fair Value	$ 89,232	$ 88,957

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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