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Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details)
Sep. 30, 2017
USD ($)
Dec. 31, 2016
USD ($)
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost $ 97,840,656 $ 100,162,357
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 25,534,763 29,374,774
Available-for-sale, at fair value, Gross Unrealized Gains 480,036 440,628
Available-for-sale, at fair value, Gross Unrealized Losses 50,347 298,533
Available-for-sale, at fair value, Estimated Fair Value 25,964,452 29,516,869
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 59,050,028 57,459,818
Available-for-sale, at fair value, Gross Unrealized Gains 2,074,655 1,619,444
Available-for-sale, at fair value, Gross Unrealized Losses 179,303 502,135
Available-for-sale, at fair value, Estimated Fair Value $ 60,945,380 $ 58,577,127
Number of Special Revenue Bonds 60 60
Corporate Debt Securities    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost $ 13,255,865 $ 13,327,765
Available-for-sale, at fair value, Gross Unrealized Gains 567,850 512,316
Available-for-sale, at fair value, Gross Unrealized Losses 3,101 0
Available-for-sale, at fair value, Estimated Fair Value 13,820,614 13,840,081
Total Fixed Maturities    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost 97,840,656 100,162,357
Available-for-sale, at fair value, Gross Unrealized Gains 3,122,541 2,572,388
Available-for-sale, at fair value, Gross Unrealized Losses 232,751 800,668
Available-for-sale, at fair value, Estimated Fair Value 100,730,446 101,934,077
Common Stock    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost 25,927,969 24,836,032
Available-for-sale, at fair value, Gross Unrealized Gains 19,221,955 16,392,210
Available-for-sale, at fair value, Gross Unrealized Losses 33,463 48,983
Available-for-sale, at fair value, Estimated Fair Value 45,116,461 41,179,259
Equity Securities    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost 25,927,969 24,836,032
Available-for-sale, at fair value, Gross Unrealized Gains 19,221,955 16,392,210
Available-for-sale, at fair value, Gross Unrealized Losses 33,463 48,983
Available-for-sale, at fair value, Estimated Fair Value 45,116,461 41,179,259
Certificates Of Deposit And Other    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost 20,692,763 6,558,840
Short Term Investments, Gross Unrealized Gains 0 0
Short Term Investments, Gross Unrealized Losses 0 0
Available-for-sale, at fair value, Estimated Fair Value 20,692,763 6,558,840
Short-Term Investments    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost 20,692,763 6,558,840
Short Term Investments, Gross Unrealized Gains 0 0
Short Term Investments, Gross Unrealized Losses 0 0
Available-for-sale, at fair value, Estimated Fair Value $ 20,692,763 $ 6,558,840