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Accumulated Other Comprehensive Income Reclassification Out Of Accumulated Other Comprehensive Income (Details) - USD ($)
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]    
Net realized gain on investment $ 149,830 $ 14,803
Prior year service cost 0 1,097
Unrecognized loss (2,235) (879)
Income before Income Taxes 2,583,461 2,369,124
Tax (779,000) (643,000)
Net Income 1,804,461 1,726,124
Reclassification Out Of Accumulated Other Comprehensive Income    
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]    
Net Income 91,618 4,490
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized Gains And Losses On Available-For-Sale Securities    
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]    
Net realized gain on investment 186,079 8,803
Other-than-temporary impairments (42,794) 0
Income before Income Taxes 143,285 8,803
Tax (50,192) (3,009)
Net Income 93,093 5,794
Reclassification Out Of Accumulated Other Comprehensive Income | Postretirement Benefits Plans    
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]    
Prior year service cost   (1,097)
Unrecognized loss (2,235) (879)
Income before Income Taxes (2,235) (1,976)
Tax 760 672
Net Income $ (1,475) $ (1,304)