FAIR VALUE MEASUREMENT (Schedule of Valuation Methodology and Unobservable Inputs) (Details) (Company Determined Fair Value (Level 3), USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013		Dec. 31, 2012
Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost	6.00%		6.00%
Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimated selling cost	10.00%		10.00%
Impaired Loans Partially Charged Off
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	2,906	[1]	3,524	[1]
Impaired Loans Partially Charged Off | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	10.00%		10.00%
Impaired Loans Partially Charged Off | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	30.00%		30.00%
Impaired Loans Specifically Reserved
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	5,811	[1]	5,659	[1]
Management adjustment of appraisal		[2]		[2]
Other real estate owned
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	1,913	[1]	1,313	[1]
Other real estate owned | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	10.00%		10.00%
Other real estate owned | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Management adjustment of appraisal	30.00%		30.00%

[1] Does not include impaired loans that are measured by the present value of expected future cash flows discounted at the loan's effective interest rate.

[2] The specific reserve for collateral-dependent impaired loans is determined by any deficit of 75% of collateral value over the recorded investment.