COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS (Details) (USD $)	3 Months Ended
	Mar. 31, 2015 ClassAction Director	Dec. 31, 2014
Off-balance Sheet Risks, Disclosure Information [Line Items]
Face Value Disclosure Off-balance Sheet Risks Face Amount Liability	$ 809,115,000	$ 757,743,000
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability, lower range	0
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability, upper range	1,000,000
Number of class actions in which the Bank is involved	2
Legal settlement, amount	2,800,000
Number of acquiree's directors the acquirer agreed to appoint to the board	2
Commitments to Extend Credit [Member]
Off-balance Sheet Risks, Disclosure Information [Line Items]
Face Value Disclosure Off-balance Sheet Risks Face Amount Liability	786,327,000	733,827,000
Standby Letters of Credit [Member]
Off-balance Sheet Risks, Disclosure Information [Line Items]
Face Value Disclosure Off-balance Sheet Risks Face Amount Liability	$ 22,788,000	$ 23,916,000