Changes in Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Net Unrealized Gains (Losses) on Securities [Member]	Mar. 31, 2012 Net Unrealized Gains (Losses) on Securities [Member]	Mar. 31, 2013 Pension and Postretirement Benefit Plans [Member]	Dec. 31, 2012 Pension and Postretirement Benefit Plans [Member]	Mar. 31, 2012 Pension and Postretirement Benefit Plans [Member]	Dec. 31, 2011 Pension and Postretirement Benefit Plans [Member]
Schedule of changes in accumulated other comprehensive income (loss)
Beginning Balance	$ (380,726)	$ 445,339	$ 279,195	$ 760,730	$ (659,921)	$ (659,921)	$ (315,391)	$ (315,391)
Change in net unrealized holding gains on securities, before reclassifications, net of tax benefit of $25,045 & $36,885	(48,617)	(71,603)	(48,617)	(71,603)
Reclassification for previously unrealized net gains on securities recognized in net income, net of tax of $1,000 & $3,013	(1,941)	(5,848)	(1,941)	(5,848)
Balance at March 31, 2013 & 2012	$ (431,284)	$ 367,888	$ 228,637	$ 683,279	$ (659,921)	$ (659,921)	$ (315,391)	$ (315,391)