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Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details) | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
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Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | $ 101,325,609 | $ 102,015,826
General Obligations Of U.S. States, Territories And Political Subdivisions |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 32,257,800 | 31,883,439
Available-for-sale, at fair value, Gross Unrealized Gains | 1,110,229 | 987,595
Available-for-sale, at fair value, Gross Unrealized Losses | 13,243 | 11,734
Available-for-sale, at fair value, Estimated Fair Value | 33,354,786 | 32,859,300
Special Revenue Obligations Of U.S. States, Territories And Political Subdivisions |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 52,061,731 | 52,202,815
Available-for-sale, at fair value, Gross Unrealized Gains | 3,234,721 | 2,604,152
Available-for-sale, at fair value, Gross Unrealized Losses | 909 | 26,127
Available-for-sale, at fair value, Estimated Fair Value | $ 55,295,543 | $ 54,780,840
Number of Special Revenue Bonds | 50 | 50
Corporate Debt Securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | $ 17,006,078 | $ 17,004,985
Available-for-sale, at fair value, Gross Unrealized Gains | 727,908 | 539,832
Available-for-sale, at fair value, Gross Unrealized Losses | 492 | 58,473
Available-for-sale, at fair value, Estimated Fair Value | 17,733,494 | 17,486,344
Auction Rate Securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost |  | 924,587
Available-for-sale, at fair value, Gross Unrealized Gains |  | 15,313
Available-for-sale, at fair value, Gross Unrealized Losses |  | 0
Available-for-sale, at fair value, Estimated Fair Value |  | 939,900
Total Fixed Maturities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 101,325,609 | 102,015,826
Available-for-sale, at fair value, Gross Unrealized Gains | 5,072,858 | 4,146,892
Available-for-sale, at fair value, Gross Unrealized Losses | 14,644 | 96,334
Available-for-sale, at fair value, Estimated Fair Value | 106,383,823 | 106,066,384
Common Stocks And Nonredeemable Preferred Stocks |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 23,962,393 | 23,855,873
Available-for-sale, at fair value, Gross Unrealized Gains | 13,807,635 | 13,785,968
Available-for-sale, at fair value, Gross Unrealized Losses | 88,459 | 128,377
Available-for-sale, at fair value, Estimated Fair Value | 37,681,569 | 37,513,464
Equity Securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 23,962,393 | 23,855,873
Available-for-sale, at fair value, Gross Unrealized Gains | 13,807,635 | 13,785,968
Available-for-sale, at fair value, Gross Unrealized Losses | 88,459 | 128,377
Available-for-sale, at fair value, Estimated Fair Value | 37,681,569 | 37,513,464
Certificates Of Deposit And Other |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 7,520,069 | 6,865,406
Available-for-sale, at fair value, Gross Unrealized Gains | 0 | 0
Available-for-sale, at fair value, Gross Unrealized Losses | 0 | 0
Available-for-sale, at fair value, Estimated Fair Value | 7,520,069 | 6,865,406
Short-Term Investments |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 7,520,069 | 6,865,406
Available-for-sale, at fair value, Gross Unrealized Gains | 0 | 0
Available-for-sale, at fair value, Gross Unrealized Losses | 0 | 0
Available-for-sale, at fair value, Estimated Fair Value | $ 7,520,069 | $ 6,865,406

X
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