FAIR VALUE DISCLOSURES (Assets Measured at Fair Value on a Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	$ 0	$ 0
Mortgage servicing rights	2,184	2,098	2,390	2,136
Other real estate owned	0	0
Total assets	467,760	467,797
Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	29,364	43,980
Mortgage servicing rights	1,906	1,734
Other real estate owned	75	730
Total assets	31,345	46,444
Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Mortgage servicing rights	0	0
Other real estate owned	0	0
Total assets	0	0
Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Mortgage servicing rights	0	0
Other real estate owned	0	0
Total assets	0	0
Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	29,364	43,980
Mortgage servicing rights	1,906	1,734
Other real estate owned	75	730
Total assets	31,345	46,444
Commercial and Industrial Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	3,980
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	990	2,762
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	990	2,762
Commercial and Industrial Loans [Member] | Non Working Capital Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	2,990	11,885
Commercial and Industrial Loans [Member] | Non Working Capital Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial and Industrial Loans [Member] | Non Working Capital Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial and Industrial Loans [Member] | Non Working Capital Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	2,990	11,885
Commercial Real Estate and Multi-Family Residential Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	24,560
Commercial Real Estate and Multi-Family Residential Loans [Member] | Construction and Land Development Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	2,026	303
Commercial Real Estate and Multi-Family Residential Loans [Member] | Construction and Land Development Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Construction and Land Development Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Construction and Land Development Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	2,026	303
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	3,892	3,515
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	3,892	3,515
Commercial Real Estate and Multi-Family Residential Loans [Member] | Nonowner Occupied Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	18,642	23,591
Commercial Real Estate and Multi-Family Residential Loans [Member] | Nonowner Occupied Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Nonowner Occupied Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Nonowner Occupied Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	18,642	23,591
Commercial Real Estate and Multi-Family Residential Loans [Member] | Multifamily Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Multifamily Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Multifamily Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Commercial Real Estate and Multi-Family Residential Loans [Member] | Multifamily Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Agri-business and Agricultural Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	268
Agri-business and Agricultural Loans [Member] | Loans Secured by Farmland [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	268	433
Agri-business and Agricultural Loans [Member] | Loans Secured by Farmland [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Agri-business and Agricultural Loans [Member] | Loans Secured by Farmland [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Agri-business and Agricultural Loans [Member] | Loans Secured by Farmland [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	268	433
Agri-business and Agricultural Loans [Member] | Loans for Agricultural Production [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	207
Agri-business and Agricultural Loans [Member] | Loans for Agricultural Production [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Agri-business and Agricultural Loans [Member] | Loans for Agricultural Production [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Agri-business and Agricultural Loans [Member] | Loans for Agricultural Production [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	207
Other Commerical Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other Commerical Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other Commerical Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other Commerical Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Consumer 1-4 Family Mortgage Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	510
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	352	878
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	352	878
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	158	406
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	158	406
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction Loans [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other Consumer [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	46	0
Other Consumer [Member] | Fair Value, Inputs, Level 1 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other Consumer [Member] | Fair Value, Inputs, Level 2 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other Consumer [Member] | Fair Value, Inputs, Level 3 [Member] | Non-Recurring [Member]
Assets Measured At Fair Value On Nonrecurring Basis [Line Items]
Impaired loans	$ 46	$ 0