ACCUMULATED OTHER COMPREHENSIVE INCOME OR LOSS (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Accumulated Other Comprehensive Income Loss Net Of Tax [Roll Forward]
Balance at beginning of period	$ (2,806,929)		$ (1,441,378)
Other comprehensive income before reclassification	2,006,041		(2,010,333)
Amounts reclassified from accumulated other comprehensive income	956,069		644,782
Net current period other comprehensive loss	2,962,110		(1,365,551)
Balance at end of period	155,181		(2,806,929)		(1,441,378)
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Total impairment losses	29,025		0		67,400
Net loss on securities transactions	16,379		300,516		1,108,091
Pension and other employee benefits	5,939,205		5,623,861		4,796,994
Income tax benefit (expense)	3,822,297		5,384,482		5,033,150
Net of tax	8,731,056		11,022,240		10,537,755
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net of tax	(956,069)		(644,782)
Unrealized Gains and Losses on Securities Available for Sale [Member]
Accumulated Other Comprehensive Income Loss Net Of Tax [Roll Forward]
Balance at beginning of period	8,022,790		7,987,055
Other comprehensive income before reclassification	(1,987,340)		220,733
Amounts reclassified from accumulated other comprehensive income	7,785		(184,998)
Net current period other comprehensive loss	(1,979,555)		35,735
Balance at end of period	6,043,235		8,022,790
Unrealized Gains and Losses on Securities Available for Sale [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Total impairment losses	(29,025)		0
Net loss on securities transactions	16,379		300,516
Income tax benefit (expense)	4,861		(115,518)
Net of tax	(7,785)		184,998
Defined Benefit and Other Benefit Plans [Member]
Accumulated Other Comprehensive Income Loss Net Of Tax [Roll Forward]
Balance at beginning of period	(10,829,719)		(9,428,433)
Other comprehensive income before reclassification	3,993,381		(2,231,066)
Amounts reclassified from accumulated other comprehensive income	948,284		829,780
Net current period other comprehensive loss	4,941,665		(1,401,286)
Balance at end of period	(5,888,054)		(10,829,719)
Defined Benefit and Other Benefit Plans [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income tax benefit (expense)	592,139		518,140
Net of tax	(948,284)		(829,780)
Prior Service Costs [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Pension and other employee benefits	83,144	[1]	83,144	[1]
Actuarial Losses [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Pension and other employee benefits	$ (1,623,567)	[1]	$ (1,431,064)	[1]

[1] (a) These accumulated other comprehensive income components are included in the computation of net periodic pension and other benefit plan costs (see Note 11 for additional information).