FAIR VALUE DISCLOSURES (Valuation Methodology and Unobservable Inputs for Level 3 Assets) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Mortgage servicing rights	$ 3,300
Fair Value, Measurements, Nonrecurring [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Impaired loans	22,634	29,364
Mortgage servicing rights	8	1,906
Other real estate owned	75	75
Commercial and Industrial Loans [Member] | Fair Value, Measurements, Nonrecurring [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Impaired loans	4,035	3,980
Valuation Technique	Collateral based measurements	Collateral based measurements
Unobservable Inputs	Discount to reflect current market conditions and ultimate collectability	Discount to reflect current market conditions and ultimate collectability
Commercial and Industrial Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	4.00%	10.00%
Commercial and Industrial Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	91.00%	99.00%
Commercial and Industrial Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	32.00%	35.00%
Commercial Real Estate and Multi-Family Residential Loans [Member] | Fair Value, Measurements, Nonrecurring [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Impaired loans	17,681	24,560
Valuation Technique	Collateral based measurements	Collateral based measurements
Unobservable Inputs	Discount to reflect current market conditions and ultimate collectability	Discount to reflect current market conditions and ultimate collectability
Commercial Real Estate and Multi-Family Residential Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	5.00%	4.00%
Commercial Real Estate and Multi-Family Residential Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	46.00%	57.00%
Commercial Real Estate and Multi-Family Residential Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	23.00%	23.00%
Agri-business and Agricultural Loans [Member] | Fair Value, Measurements, Nonrecurring [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Impaired loans	489	268
Valuation Technique	Collateral based measurements	Collateral based measurements
Unobservable Inputs	Discount to reflect current market conditions and ultimate collectability	Discount to reflect current market conditions and ultimate collectability
Agri-business and Agricultural Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	7.00%
Agri-business and Agricultural Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	9.00%
Agri-business and Agricultural Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	8.00%	19.00%
Consumer 1-4 Family Mortgage Loans [Member] | Fair Value, Measurements, Nonrecurring [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Impaired loans	376	510
Valuation Technique	Collateral based measurements	Collateral based measurements
Unobservable Inputs	Discount to reflect current market conditions and ultimate collectability	Discount to reflect current market conditions and ultimate collectability
Consumer 1-4 Family Mortgage Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	8.00%	8.00%
Consumer 1-4 Family Mortgage Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	51.00%	100.00%
Consumer 1-4 Family Mortgage Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	27.00%	39.00%
Other Consumer Loans [Member] | Fair Value, Measurements, Nonrecurring [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Impaired loans	53	46
Valuation Technique	Collateral based measurements	Collateral based measurements
Unobservable Inputs	Discount to reflect current market conditions and ultimate collectability	Discount to reflect current market conditions and ultimate collectability
Other Consumer Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	28.00%	29.00%
Other Consumer Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	61.00%	100.00%
Other Consumer Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	35.00%	40.00%
Mortgage Servicing Rights [Member] | Fair Value, Measurements, Nonrecurring [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Mortgage servicing rights	8	1,906
Valuation Technique	Discounted cash flows	Discounted cash flows
Unobservable Inputs	Discount rate	Discount rate
Mortgage Servicing Rights [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs		9.10%
Mortgage Servicing Rights [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs		9.50%
Mortgage Servicing Rights [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	9.50%	9.20%
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Other real estate owned	$ 75	$ 75
Valuation Technique	Appraisal	Appraisals
Unobservable Inputs	Discount to reflect current market conditions	Discount to reflect current market conditions
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average [Member]
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Range of Inputs	49.00%	49.00%