Accumulated Other Comprehensive Income or Loss (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Summary of accumulated other comprehensive income balance [Abstract]
Unrealized gains on securities available for sale, opening balance			$ 7,987,055
Unrealized gains on securities available for sale, current period changes	590,403	(88,351)	788,219	2,678,187
Unrealized gains on securities available for sale, closing balance	8,775,274		8,775,274
Unrealized loss on pension plans and other benefit Plans, opening balance			(9,428,433)
Unrealized loss on pension plans and other benefit Plans	193,768	94,852	581,304	284,556
Unrealized loss on pension plans and other benefit Plans, opening balance	(8,847,129)		(8,847,129)
Total, Accumulated other comprehensive income, opening balance			(1,441,378)
Total, current period changes	784,171	6,501	1,369,523	2,962,743
Total, Accumulated other comprehensive income, closing balance	$ (71,855)		$ (71,855)