Accumulated Other Comprehensive Income Balances Of Each Component Of Accumulated Other Comprehensive Income, Net Of Tax (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 12,753,330	$ 9,261,001	$ 11,347,404	$ 8,818,430
Other comprehensive income before reclassifications	(628,914)	730,005	1,324,166	1,219,153
Amounts reclassified from accumulated other comprehensive income	(3,840)	(171,585)	(550,994)	(218,162)
Other comprehensive (loss) income	(632,754)	558,420	773,172	1,000,991
Ending balance	12,120,576	9,819,421	12,120,576	9,819,421
Unrealized Gains And Losses On Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	12,800,951	9,361,879	11,395,757	8,920,883
Other comprehensive income before reclassifications	(628,914)	730,005	1,324,166	1,219,153
Amounts reclassified from accumulated other comprehensive income	(4,206)	(172,363)	(552,092)	(220,515)
Other comprehensive (loss) income	(633,120)	557,642	772,074	998,638
Ending balance	12,167,831	9,919,521	12,167,831	9,919,521
Postretirement Benefits Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(47,621)	(100,878)	(48,353)	(102,453)
Other comprehensive income before reclassifications	0	0	0	0
Amounts reclassified from accumulated other comprehensive income	366	778	1,098	2,353
Other comprehensive (loss) income	366	778	1,098	2,353
Ending balance	$ (47,255)	$ (100,100)	$ (47,255)	$ (100,100)