Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details) $ in Thousands	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fixed maturities, available-for-sale, amortized cost	$ 99,023	$ 100,314
Government obligations
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fixed maturities, available-for-sale, amortized cost		1,043
Available-for-sale, at fair value, Gross Unrealized Gains		0
Available-for-sale, at fair value, Gross Unrealized Losses		1
Available-for-sale, at fair value, Estimated Fair Value		1,042
General Obligations Of U.S. States, Territories And Political Subdivisions
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fixed maturities, available-for-sale, amortized cost	22,893	24,189
Available-for-sale, at fair value, Gross Unrealized Gains	288	505
Available-for-sale, at fair value, Gross Unrealized Losses	227	50
Available-for-sale, at fair value, Estimated Fair Value	22,954	24,644
Special Revenue Obligations Of U.S. States, Territories And Political Subdivisions
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fixed maturities, available-for-sale, amortized cost	63,638	62,592
Available-for-sale, at fair value, Gross Unrealized Gains	1,329	2,218
Available-for-sale, at fair value, Gross Unrealized Losses	380	165
Available-for-sale, at fair value, Estimated Fair Value	$ 64,587	$ 64,645
Number of Special Revenue Bonds	60	60
Corporate Debt Securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fixed maturities, available-for-sale, amortized cost	$ 12,492	$ 12,490
Available-for-sale, at fair value, Gross Unrealized Gains	417	527
Available-for-sale, at fair value, Gross Unrealized Losses	61	7
Available-for-sale, at fair value, Estimated Fair Value	12,848	13,010
Total Fixed Maturities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Fixed maturities, available-for-sale, amortized cost	99,023	100,314
Available-for-sale, at fair value, Gross Unrealized Gains	2,034	3,250
Available-for-sale, at fair value, Gross Unrealized Losses	668	223
Available-for-sale, at fair value, Estimated Fair Value	$ 100,389	$ 103,341

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
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-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562

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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://www.xbrl.org/2003/role/presentationRef
-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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2)
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