LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 6) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 item	Dec. 31, 2011 item
Loans by class modified as troubled debt restructurings
Number of Loans	14	81
Pre-Modification Outstanding Recorded Investment	$ 14,312	$ 20,774
Post-Modification Outstanding Recorded Investment	11,679	18,186
Allowance for loan losses increased due to troubled debt restructurings	10	30
Charge offs due to troubled debt restructurings	2,477	3,062
Loans by class modified as troubled debt restructurings for which there was a payment default within twelve months following the modification
Number of Loans	16	25
Recorded Investment	5,987	3,132
Period of contractually past due loans under the modified terms, to be considered in payment default	90 days
Allowance for loan losses increased due to troubled debt restructurings	256	178
Charge offs due to troubled debt restructurings	1,192	594
Additional disclosures
Allocated specific reserves	567	3,013
Amounts Company has committed to lend to customers with outstanding loans classified as troubled debt restructurings	0	0
Recorded investment of loans modified other than troubled debt restructurings	18,612
Commercial | Commercial and industrial
Loans by class modified as troubled debt restructurings
Number of Loans	2	3
Pre-Modification Outstanding Recorded Investment	179	248
Post-Modification Outstanding Recorded Investment	179	248
Loans by class modified as troubled debt restructurings for which there was a payment default within twelve months following the modification
Number of Loans	3	4
Recorded Investment	2,195	926
Commercial Real Estate | Construction and development
Loans by class modified as troubled debt restructurings
Number of Loans		3
Pre-Modification Outstanding Recorded Investment		4,287
Post-Modification Outstanding Recorded Investment		4,287
Loans by class modified as troubled debt restructurings for which there was a payment default within twelve months following the modification
Number of Loans	1	1
Recorded Investment	323	150
Commercial Real Estate | Farm
Loans by class modified as troubled debt restructurings for which there was a payment default within twelve months following the modification
Number of Loans		2
Recorded Investment		532
Commercial Real Estate | Hotel
Loans by class modified as troubled debt restructurings
Number of Loans	2	1
Pre-Modification Outstanding Recorded Investment	7,727	5,922
Post-Modification Outstanding Recorded Investment	5,968	5,498
Commercial Real Estate | Other
Loans by class modified as troubled debt restructurings
Number of Loans	7	15
Pre-Modification Outstanding Recorded Investment	6,241	8,783
Post-Modification Outstanding Recorded Investment	5,367	6,619
Loans by class modified as troubled debt restructurings for which there was a payment default within twelve months following the modification
Number of Loans	9	7
Recorded Investment	3,332	910
Residential | 1-4 Family
Loans by class modified as troubled debt restructurings
Number of Loans	1	8
Pre-Modification Outstanding Recorded Investment	91	632
Post-Modification Outstanding Recorded Investment	91	632
Loans by class modified as troubled debt restructurings for which there was a payment default within twelve months following the modification
Number of Loans	2	6
Recorded Investment	125	521
Residential | Home Equity
Loans by class modified as troubled debt restructurings
Number of Loans	1	45
Pre-Modification Outstanding Recorded Investment	70	855
Post-Modification Outstanding Recorded Investment	70	855
Loans by class modified as troubled debt restructurings for which there was a payment default within twelve months following the modification
Number of Loans	1	5
Recorded Investment	12	93
Consumer | Direct
Loans by class modified as troubled debt restructurings
Number of Loans	1	6
Pre-Modification Outstanding Recorded Investment	4	47
Post-Modification Outstanding Recorded Investment	$ 4	$ 47
Minimum
Troubled debt restructurings
Period of modifications involving a reduction of the stated interest rate of the loan	60 months
Period of modifications involving an extension of the maturity date	6 months
Maximum
Troubled debt restructurings
Period of modifications involving a reduction of the stated interest rate of the loan	30 years
Period of modifications involving an extension of the maturity date	14 months