INVESTMENTS (Other Equity Securities) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Other Securities Owned [Line Items]
Federal Reserve Bank stock	$ 8,269	$ 8,269
Total equity securities	41,336	41,437
Atlantic Central Bankers Bank Stock
Other Securities Owned [Line Items]
Federal Home Loan Bank of Atlanta stock	$ 33,067	$ 33,168