COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Face Value Disclosure Off-balance Sheet Risks Face Amount Liability	$ 797,583,000	$ 774,346,000
Range of reasonably possible losses in the aggregate, beyond the existing recorded liability, lower range	0
Range of reasonably possible losses in the aggregate, beyond the existing recorded liability, upper range	1,000,000
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Face Value Disclosure Off-balance Sheet Risks Face Amount Liability	773,240,000	750,178,000
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Face Value Disclosure Off-balance Sheet Risks Face Amount Liability	$ 24,343,000	$ 24,168,000