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Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details) | Sep. 30, 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 | $ 105,240,488 | $ 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 | 31,751,299 | 31,883,439
Available-for-sale, at fair value, Gross Unrealized Gains | 1,114,177 | 987,595
Available-for-sale, at fair value, Gross Unrealized Losses | 2,072 | 11,734
Available-for-sale, at fair value, Estimated Fair Value | 32,863,404 | 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 | 56,651,943 | 52,202,815
Available-for-sale, at fair value, Gross Unrealized Gains | 3,751,576 | 2,604,152
Available-for-sale, at fair value, Gross Unrealized Losses | 15,241 | 26,127
Available-for-sale, at fair value, Estimated Fair Value | $ 60,388,278 | $ 54,780,840
Number of Special Revenue Bonds | 60 | 0
Corporate Debt Securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | $ 16,837,246 | $ 17,004,985
Available-for-sale, at fair value, Gross Unrealized Gains | 950,115 | 539,832
Available-for-sale, at fair value, Gross Unrealized Losses | 119 | 58,473
Available-for-sale, at fair value, Estimated Fair Value | 17,787,242 | 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 | 105,240,488 | 102,015,826
Available-for-sale, at fair value, Gross Unrealized Gains | 5,815,868 | 4,146,892
Available-for-sale, at fair value, Gross Unrealized Losses | 17,432 | 96,334
Available-for-sale, at fair value, Estimated Fair Value | 111,038,924 | 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 | 24,958,456 | 23,855,873
Available-for-sale, at fair value, Gross Unrealized Gains | 14,974,237 | 13,785,968
Available-for-sale, at fair value, Gross Unrealized Losses | 97,814 | 128,377
Available-for-sale, at fair value, Estimated Fair Value | 39,834,879 | 37,513,464
Equity Securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 24,958,456 | 23,855,873
Available-for-sale, at fair value, Gross Unrealized Gains | 14,974,237 | 13,785,968
Available-for-sale, at fair value, Gross Unrealized Losses | 97,814 | 128,377
Available-for-sale, at fair value, Estimated Fair Value | 39,834,879 | 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 | 3,925,296 | 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 | 3,925,296 | 6,865,406
Short-Term Investments |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 3,925,296 | 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 | $ 3,925,296 | $ 6,865,406

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