CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) [Abstract]
Net income	$ 2,833,845	$ 3,290,940	$ 8,892,418	$ 7,576,059
Other comprehensive income
Unrealized holding gains on securities available for sale	959,668	294,210	1,633,195	5,448,351
Change in unrealized gains (losses) on securities available for sale for which a portion of an other-than-temporary impairment has been recognized in earnings, net of reclassification	0	(9,425)	0	27,725
Reclassification adjustment gains realized in net income	(597)	(428,882)	(300,516)	(1,108,091)
Net unrealized gains (losses)	959,071	(144,097)	1,332,679	4,367,985
Less: Tax effect	368,668	(55,746)	544,460	1,689,798
Net of tax amount	590,403	(88,351)	788,219	2,678,187
Change in funded status of defined benefit pension plan and other benefit plans	314,762	154,699	944,286	464,097
Less: Tax effect	120,994	59,847	362,982	179,541
Net of tax amount	193,768	94,852	581,304	284,556
Total other comprehensive income	784,171	6,501	1,369,523	2,962,743
Comprehensive income	$ 3,618,016	$ 3,297,441	$ 10,261,941	$ 10,538,802