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Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details)
Jun. 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 $ 106,764,208 $ 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 33,490,433 31,883,439
Available-for-sale, at fair value, Gross Unrealized Gains 1,456,384 987,595
Available-for-sale, at fair value, Gross Unrealized Losses 0 11,734
Available-for-sale, at fair value, Estimated Fair Value 34,946,817 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 56,437,628 52,202,815
Available-for-sale, at fair value, Gross Unrealized Gains 4,490,430 2,604,152
Available-for-sale, at fair value, Gross Unrealized Losses 678 26,127
Available-for-sale, at fair value, Estimated Fair Value $ 60,927,380 $ 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 $ 16,836,147 $ 17,004,985
Available-for-sale, at fair value, Gross Unrealized Gains 961,889 539,832
Available-for-sale, at fair value, Gross Unrealized Losses 0 58,473
Available-for-sale, at fair value, Estimated Fair Value 17,798,036 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 106,764,208 102,015,826
Available-for-sale, at fair value, Gross Unrealized Gains 6,908,703 4,146,892
Available-for-sale, at fair value, Gross Unrealized Losses 678 96,334
Available-for-sale, at fair value, Estimated Fair Value 113,672,233 106,066,384
Common Stocks And Nonredeemable Preferred Stocks    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost 23,998,522 23,855,873
Available-for-sale, at fair value, Gross Unrealized Gains 15,057,993 13,785,968
Available-for-sale, at fair value, Gross Unrealized Losses 94,610 128,377
Available-for-sale, at fair value, Estimated Fair Value 38,961,905 37,513,464
Equity Securities    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost 23,998,522 23,855,873
Available-for-sale, at fair value, Gross Unrealized Gains 15,057,993 13,785,968
Available-for-sale, at fair value, Gross Unrealized Losses 94,610 128,377
Available-for-sale, at fair value, Estimated Fair Value 38,961,905 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 2,665,302 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 2,665,302 6,865,406
Short-Term Investments    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Available-for-sale, at fair value, Amortized Cost 2,665,302 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 $ 2,665,302 $ 6,865,406