FAIR VALUE MEASUREMENT (Summary of Assets Measured at Fair Value on Non Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Readily Available Market Prices (Level 1)
Assets:
Mortgage servicing rights
Observable Market Data (Level 2)
Assets:
Mortgage servicing rights	1,373	879
Company Determined Fair Value (Level 3)
Assets:
Mortgage servicing rights
Fair Value, Measurements, Nonrecurring
Assets:
Collateral-dependent impaired loans	8,717	9,183
Other real estate owned	1,913	1,313
Mortgage servicing rights	1,373	879
Fair Value, Measurements, Nonrecurring | Readily Available Market Prices (Level 1)
Assets:
Collateral-dependent impaired loans
Other real estate owned
Mortgage servicing rights
Fair Value, Measurements, Nonrecurring | Observable Market Data (Level 2)
Assets:
Collateral-dependent impaired loans
Other real estate owned
Mortgage servicing rights	1,373	879
Fair Value, Measurements, Nonrecurring | Company Determined Fair Value (Level 3)
Assets:
Collateral-dependent impaired loans	8,717	9,183
Other real estate owned	1,913	1,313
Mortgage servicing rights