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Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details)
Sep. 30, 2016
USD ($)
Dec. 31, 2015
USD ($)
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