Accumulated Other Comprehensive Income Reclassification Out Of Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net realized gain on investment	$ 92,082	$ 55,272	$ 584,219	$ 71,616
Prior year service cost	555	(379)	1,109	(759)
Unrecognized loss	0	(1,574)	0	(3,147)
Income before Income Taxes	4,679,044	5,870,050	6,035,559	10,621,468
Tax	(1,281,000)	(1,846,000)	(1,652,000)	(3,211,000)
Net Income	3,398,044	4,024,050	4,383,559	7,410,468
Reclassification Out Of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net Income	44,785	35,883	547,154	46,577
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	68,364	70,857	833,636	105,686
Other-than-temporary impairments	0	(15,585)	0	(34,070)
Income before Income Taxes	68,364	55,272	833,636	71,616
Tax	(23,213)	(18,602)	(285,750)	(23,464)
Net Income	45,151	36,670	547,886	48,152
Reclassification Out Of Accumulated Other Comprehensive Income | Postretirement Benefits Plans
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Prior year service cost	(555)	379	(1,109)	759
Unrecognized loss	0	(1,574)	0	(3,147)
Income before Income Taxes	(555)	(1,195)	(1,109)	(2,388)
Tax	189	408	377	813
Net Income	$ (366)	$ (787)	$ (732)	$ (1,575)