PREMISES AND EQUIPMENT - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Depreciation and amortization	$ 1,218	$ 1,173	$ 1,066
Operating Leases, Rent Expense	$ 2,195	$ 2,060	$ 1,734