LOANS AND ALLOWANCE (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Unpaid Principal Balance
With an allowance recorded	$ 15,147		$ 11,696
With no related allowance recorded	32,112		48,859
Total impaired loans	47,259		60,555
Recorded Investment
With an allowance recorded	14,258		11,290
With no related allowance recorded	26,089		39,264
Total impaired loans	40,347		50,554
Allowance for Loan Losses Allocated
With an allowance recorded	3,621		3,217
Total impaired loans	3,621		3,217
Interest Income Recognized
With no related allowance recorded	14		358
Total impaired loans	14		358
Cash Basis Interest Recognized
With no related allowance recorded	14		358
Total impaired loans	14		358
Average recorded investment
Average Balance	45,450	57,170
Performing troubled debt restructurings excluded as allowed	9,619
Commercial
Allowance for Loan Losses Allocated
With an allowance recorded	355		150
Commercial | Commercial and industrial
Unpaid Principal Balance
With an allowance recorded	509		305
With no related allowance recorded	1,475		2,115
Recorded Investment
With an allowance recorded	496		305
With no related allowance recorded	888		1,492
Allowance for Loan Losses Allocated
With an allowance recorded	355		150
Interest Income Recognized
With no related allowance recorded			76
Cash Basis Interest Recognized
With no related allowance recorded			76
Average recorded investment
Average Balance	1,590	4,871
Commercial | Agricultural
Unpaid Principal Balance
With no related allowance recorded			1
Average recorded investment
Average Balance		46
Commercial Real Estate
Allowance for Loan Losses Allocated
With an allowance recorded	3,143		3,067
Commercial Real Estate | Farm
Unpaid Principal Balance
With an allowance recorded	625		922
With no related allowance recorded	1,093		741
Recorded Investment
With an allowance recorded	625		922
With no related allowance recorded	986		663
Allowance for Loan Losses Allocated
With an allowance recorded	204		442
Interest Income Recognized
With no related allowance recorded			9
Cash Basis Interest Recognized
With no related allowance recorded			9
Average recorded investment
Average Balance	1,598	1,010
Commercial Real Estate | Hotel
Unpaid Principal Balance
With no related allowance recorded			6,257
Recorded Investment
With no related allowance recorded			5,968
Average recorded investment
Average Balance	2,984	2,986
Commercial Real Estate | Construction and development
Unpaid Principal Balance
With an allowance recorded	641		742
With no related allowance recorded	2,539		2,685
Recorded Investment
With an allowance recorded	543		644
With no related allowance recorded	1,487		1,499
Allowance for Loan Losses Allocated
With an allowance recorded	252		240
Interest Income Recognized
With no related allowance recorded			108
Cash Basis Interest Recognized
With no related allowance recorded			108
Average recorded investment
Average Balance	2,086	6,099
Commercial Real Estate | Other
Unpaid Principal Balance
With an allowance recorded	11,951		9,727
With no related allowance recorded	12,606		20,047
Recorded Investment
With an allowance recorded	11,276		9,419
With no related allowance recorded	9,982		14,384
Allowance for Loan Losses Allocated
With an allowance recorded	2,687		2,385
Interest Income Recognized
With no related allowance recorded	6		129
Cash Basis Interest Recognized
With no related allowance recorded	6		129
Average recorded investment
Average Balance	22,530	26,426
Residential
Allowance for Loan Losses Allocated
With an allowance recorded	121
Residential | 1-4 Family
Unpaid Principal Balance
With an allowance recorded	1,239
With no related allowance recorded	10,787		13,110
Recorded Investment
With an allowance recorded	1,137
With no related allowance recorded	9,339		11,548
Allowance for Loan Losses Allocated
With an allowance recorded	118
Interest Income Recognized
With no related allowance recorded	2		3
Cash Basis Interest Recognized
With no related allowance recorded	2		3
Average recorded investment
Average Balance	11,012	11,979
Residential | Home Equity
Unpaid Principal Balance
With an allowance recorded	52
With no related allowance recorded	2,804		2,801
Recorded Investment
With an allowance recorded	51
With no related allowance recorded	2,610		2,627
Allowance for Loan Losses Allocated
With an allowance recorded	3
Interest Income Recognized
With no related allowance recorded	2		17
Cash Basis Interest Recognized
With no related allowance recorded	2		17
Average recorded investment
Average Balance	2,645	2,639
Consumer
Allowance for Loan Losses Allocated
With an allowance recorded	2
Consumer | Direct
Unpaid Principal Balance
With an allowance recorded	130
With no related allowance recorded	785		1,083
Recorded Investment
With an allowance recorded	130
With no related allowance recorded	776		1,066
Allowance for Loan Losses Allocated
With an allowance recorded	2
Interest Income Recognized
With no related allowance recorded	4		9
Cash Basis Interest Recognized
With no related allowance recorded	4		9
Average recorded investment
Average Balance	986	1,063
Consumer | Indirect
Unpaid Principal Balance
With no related allowance recorded	23		19
Recorded Investment
With no related allowance recorded	21		17
Interest Income Recognized
With no related allowance recorded			7
Cash Basis Interest Recognized
With no related allowance recorded			7
Average recorded investment
Average Balance	$ 19	$ 51