LOANS AND ALLOWANCE (Details 6) (USD $)												9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Pass	Dec. 31, 2012 Pass	Sep. 30, 2013 Special Mention	Dec. 31, 2012 Special Mention	Sep. 30, 2013 Substandard	Dec. 31, 2012 Substandard	Sep. 30, 2013 Non-accrual	Dec. 31, 2012 Non-accrual	Sep. 30, 2013 Minimum	Sep. 30, 2013 Minimum Substandard	Sep. 30, 2013 Minimum Non-accrual	Sep. 30, 2013 Minimum Watch	Sep. 30, 2013 Minimum Loss	Sep. 30, 2013 Maximum Watch	Sep. 30, 2013 Consumer loans not secured by 1-4 family residential real estate Minimum Substandard	Sep. 30, 2013 Consumer loans not secured by 1-4 family residential real estate Maximum Substandard	Sep. 30, 2013 Commercial	Dec. 31, 2012 Commercial	Sep. 30, 2013 Commercial Commercial and industrial	Dec. 31, 2012 Commercial Commercial and industrial	Sep. 30, 2013 Commercial Commercial and industrial Pass	Dec. 31, 2012 Commercial Commercial and industrial Pass	Sep. 30, 2013 Commercial Commercial and industrial Special Mention	Dec. 31, 2012 Commercial Commercial and industrial Special Mention	Sep. 30, 2013 Commercial Commercial and industrial Substandard	Dec. 31, 2012 Commercial Commercial and industrial Substandard	Sep. 30, 2013 Commercial Commercial and industrial Non-accrual	Dec. 31, 2012 Commercial Commercial and industrial Non-accrual	Sep. 30, 2013 Commercial Agricultural	Dec. 31, 2012 Commercial Agricultural	Sep. 30, 2013 Commercial Agricultural Pass	Dec. 31, 2012 Commercial Agricultural Pass	Sep. 30, 2013 Commercial Agricultural Substandard	Dec. 31, 2012 Commercial Agricultural Substandard	Sep. 30, 2013 Commercial Real Estate	Dec. 31, 2012 Commercial Real Estate	Sep. 30, 2013 Commercial Real Estate Farm	Dec. 31, 2012 Commercial Real Estate Farm	Sep. 30, 2013 Commercial Real Estate Farm Pass	Dec. 31, 2012 Commercial Real Estate Farm Pass	Sep. 30, 2013 Commercial Real Estate Farm Special Mention	Dec. 31, 2012 Commercial Real Estate Farm Special Mention	Dec. 31, 2012 Commercial Real Estate Farm Substandard	Sep. 30, 2013 Commercial Real Estate Farm Non-accrual	Dec. 31, 2012 Commercial Real Estate Farm Non-accrual	Sep. 30, 2013 Commercial Real Estate Hotel	Dec. 31, 2012 Commercial Real Estate Hotel	Sep. 30, 2013 Commercial Real Estate Hotel Pass	Dec. 31, 2012 Commercial Real Estate Hotel Pass	Sep. 30, 2013 Commercial Real Estate Hotel Special Mention	Dec. 31, 2012 Commercial Real Estate Hotel Special Mention	Sep. 30, 2013 Commercial Real Estate Construction and development	Dec. 31, 2012 Commercial Real Estate Construction and development	Sep. 30, 2013 Commercial Real Estate Construction and development Pass	Dec. 31, 2012 Commercial Real Estate Construction and development Pass	Sep. 30, 2013 Commercial Real Estate Construction and development Special Mention	Dec. 31, 2012 Commercial Real Estate Construction and development Special Mention	Sep. 30, 2013 Commercial Real Estate Construction and development Substandard	Dec. 31, 2012 Commercial Real Estate Construction and development Substandard	Sep. 30, 2013 Commercial Real Estate Construction and development Non-accrual	Dec. 31, 2012 Commercial Real Estate Construction and development Non-accrual	Sep. 30, 2013 Commercial Real Estate Other	Dec. 31, 2012 Commercial Real Estate Other	Sep. 30, 2013 Commercial Real Estate Other Pass	Dec. 31, 2012 Commercial Real Estate Other Pass	Sep. 30, 2013 Commercial Real Estate Other Special Mention	Dec. 31, 2012 Commercial Real Estate Other Special Mention	Sep. 30, 2013 Commercial Real Estate Other Substandard	Dec. 31, 2012 Commercial Real Estate Other Substandard	Sep. 30, 2013 Commercial Real Estate Other Non-accrual	Dec. 31, 2012 Commercial Real Estate Other Non-accrual	Sep. 30, 2013 Residential	Dec. 31, 2012 Residential	Sep. 30, 2013 Residential Substandard	Dec. 31, 2012 Residential Substandard	Sep. 30, 2013 Residential Performing	Dec. 31, 2012 Residential Performing	Sep. 30, 2013 Residential Watch	Dec. 31, 2012 Residential Watch	Sep. 30, 2013 Residential 1-4 Family	Dec. 31, 2012 Residential 1-4 Family	Sep. 30, 2013 Residential 1-4 Family Substandard	Dec. 31, 2012 Residential 1-4 Family Substandard	Sep. 30, 2013 Residential 1-4 Family Performing	Dec. 31, 2012 Residential 1-4 Family Performing	Sep. 30, 2013 Residential 1-4 Family Watch	Dec. 31, 2012 Residential 1-4 Family Watch	Sep. 30, 2013 Residential Home equity	Dec. 31, 2012 Residential Home equity	Sep. 30, 2013 Residential Home equity Substandard	Dec. 31, 2012 Residential Home equity Substandard	Sep. 30, 2013 Residential Home equity Performing	Dec. 31, 2012 Residential Home equity Performing	Sep. 30, 2013 Residential Home equity Watch	Dec. 31, 2012 Residential Home equity Watch	Sep. 30, 2013 Consumer	Dec. 31, 2012 Consumer	Sep. 30, 2013 Consumer Substandard	Dec. 31, 2012 Consumer Substandard	Sep. 30, 2013 Consumer Performing	Dec. 31, 2012 Consumer Performing	Sep. 30, 2013 Consumer Loss	Dec. 31, 2012 Consumer Loss	Sep. 30, 2013 Consumer Direct	Dec. 31, 2012 Consumer Direct	Sep. 30, 2013 Consumer Direct Substandard	Dec. 31, 2012 Consumer Direct Substandard	Sep. 30, 2013 Consumer Direct Performing	Dec. 31, 2012 Consumer Direct Performing	Sep. 30, 2013 Consumer Direct Loss	Dec. 31, 2012 Consumer Direct Loss	Sep. 30, 2013 Consumer Indirect	Dec. 31, 2012 Consumer Indirect	Sep. 30, 2013 Consumer Indirect Substandard	Dec. 31, 2012 Consumer Indirect Substandard	Sep. 30, 2013 Consumer Indirect Performing	Dec. 31, 2012 Consumer Indirect Performing	Dec. 31, 2012 Consumer Indirect Loss
Risk category of loans
Credit relationships with an outstanding balance											$ 1,000,000
Period for which principal and interest has been in default													90 days
Loans	$ 1,610,990,000	$ 1,553,383,000	$ 816,005,000	$ 747,342,000	$ 78,937,000	$ 87,977,000	$ 12,152,000	$ 28,785,000	$ 14,260,000	$ 22,460,000									$ 175,592,000	$ 156,511,000	$ 149,402,000	$ 134,156,000	$ 144,313,000	$ 119,755,000	$ 3,821,000	$ 9,824,000	$ 931,000	$ 2,800,000	$ 337,000	$ 1,777,000	$ 26,190,000	$ 22,355,000	$ 26,189,000	$ 22,350,000	$ 1,000	$ 5,000	$ 745,762,000	$ 730,053,000	$ 70,765,000	$ 66,119,000	$ 69,408,000	$ 63,294,000	$ 111,000	$ 1,094,000	$ 147,000	$ 1,246,000	$ 1,584,000	$ 109,322,000	$ 131,495,000	$ 61,991,000	$ 83,522,000	$ 47,331,000	$ 47,973,000	$ 27,392,000	$ 25,208,000	$ 24,749,000	$ 18,719,000	$ 1,460,000	$ 1,465,000	$ 468,000	$ 3,367,000	$ 715,000	$ 1,657,000	$ 538,283,000	$ 507,231,000	$ 489,355,000	$ 439,702,000	$ 26,214,000	$ 27,621,000	$ 10,752,000	$ 22,466,000	$ 11,962,000	$ 17,442,000	$ 643,429,000	$ 618,524,000	$ 6,545,000	$ 6,920,000	$ 634,847,000	$ 608,642,000	$ 2,037,000	$ 2,962,000	$ 404,146,000	$ 394,195,000	$ 5,348,000	$ 5,492,000	$ 397,123,000	$ 386,098,000	$ 1,675,000	$ 2,605,000	$ 239,283,000	$ 224,329,000	$ 1,197,000	$ 1,428,000	$ 237,724,000	$ 222,544,000	$ 362,000	$ 357,000	$ 46,207,000	$ 48,295,000	$ 59,000	$ 207,000	$ 46,018,000	$ 47,987,000	$ 130,000	$ 101,000	$ 44,937,000	$ 45,844,000	$ 59,000	$ 195,000	$ 44,758,000	$ 45,553,000	$ 120,000	$ 96,000	$ 1,270,000	$ 2,451,000	$ 10,000	$ 12,000	$ 1,260,000	$ 2,434,000	$ 5,000
Period of loans past due												90 days		60 days	119 days	89 days	60 days	119 days