FAIR VALUE OF INSTRUMENTS - Financial Assets Measured at Fair Value on a Recurring Basis (Detail) (Fair Value on a Recurring Basis [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Level 1 [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total Securities Available for Sale	$ 25,479	$ 10,568
Level 1 [Member] | U.S. Treasury [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total Securities Available for Sale	25,479	10,568
Level 2 [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total Securities Available for Sale	316,571	328,929
Level 2 [Member] | U.S. Government agency [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total Securities Available for Sale	210,915	220,200
Level 2 [Member] | Mortgage-backed securities [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total Securities Available for Sale	45,338	53,006
Level 2 [Member] | State and local governments [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total Securities Available for Sale	60,318	55,723
Level 3 [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total Securities Available for Sale	12,424	16,408
Level 3 [Member] | State and local governments [Member]
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total Securities Available for Sale	$ 12,424	$ 16,408