Annual report pursuant to Section 13 and 15(d)

PREMISES AND EQUIPMENT (Additional Information) (Detail)

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PREMISES AND EQUIPMENT (Additional Information) (Detail) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Depreciation, Depletion and Amortization, Nonproduction $ 1,838,000us-gaap_DepreciationAndAmortization $ 1,841,000us-gaap_DepreciationAndAmortization $ 1,218,000us-gaap_DepreciationAndAmortization
Operating Leases, Rent Expense $ 2,674,000us-gaap_LeaseAndRentalExpense $ 2,488,000us-gaap_LeaseAndRentalExpense $ 2,195,000us-gaap_LeaseAndRentalExpense