SEGMENT REPORTING (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
SEGMENT REPORTING [Abstract]
Number of primary business segment	2
Reportable segments and reconciliation to consolidated results [Abstract]
Net interest income	$ 46,780,829	$ 43,849,203	$ 34,530,119
Provision for loan losses	827,567	958,333	1,125,000
Net interest income after provision for loan losses	45,953,262	42,890,870	33,405,119
Other operating income	17,290,085	17,464,258	19,644,676
Other operating expenses	46,836,625	44,784,223	37,842,683
Income before income tax expense	16,406,722	15,570,905	15,207,112
Income tax expense (benefit)	5,384,482	5,033,150	5,105,239
Net income	11,022,240	10,537,755	10,101,873
Segment assets	1,248,159,708	1,216,259,587
Consolidated Total [Member]
Reportable segments and reconciliation to consolidated results [Abstract]
Net interest income	46,781	43,849	34,530
Provision for loan losses	828	958	1,125
Net interest income after provision for loan losses	45,953	42,891	33,405
Other operating income	17,290	17,464	19,645
Other operating expenses	46,836	44,784	37,843
Income before income tax expense	16,407	15,571	15,207
Income tax expense (benefit)	5,385	5,033	5,105
Net income	11,022	10,538	10,102
Segment assets	1,248,160	1,216,260	958,327
Core Banking [Member]
Reportable segments and reconciliation to consolidated results [Abstract]
Net interest income	46,773	43,840	34,526
Provision for loan losses	828	958	1,125
Net interest income after provision for loan losses	45,945	42,882	33,401
Other operating income	9,699	9,428	8,288
Other operating expenses	40,591	38,229	31,315
Income before income tax expense	15,053	14,081	10,374
Income tax expense (benefit)	4,955	4,529	3,304
Net income	10,098	9,552	7,070
Segment assets	1,240,752	1,207,464	949,040
Wealth Management Group Services [Member]
Reportable segments and reconciliation to consolidated results [Abstract]
Net interest income	0	0	0
Provision for loan losses	0	0	0
Net interest income after provision for loan losses	0	0	0
Other operating income	6,827	6,710	10,497
Other operating expenses	5,389	5,852	5,864
Income before income tax expense	1,438	858	4,633
Income tax expense (benefit)	553	332	1,792
Net income	885	526	2,841
Segment assets	5,156	5,729	6,138
Holding Company and Other [Member]
Reportable segments and reconciliation to consolidated results [Abstract]
Net interest income	8	9	4
Provision for loan losses	0	0	0
Net interest income after provision for loan losses	8	9	4
Other operating income	764	1,326	860
Other operating expenses	856	703	664
Income before income tax expense	(84)	632	200
Income tax expense (benefit)	(123)	172	9
Net income	39	460	191
Segment assets	$ 2,252	$ 3,067	$ 3,149