BRANCH CONSOLIDATION (Details) (USD $)	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Branch Consolidation [Line Items]
Branch consolidation costs	$ 1,600,000	$ 460,000	$ 2,074,000	$ 0	$ 0
Equipment expense			2,410,000	2,024,000	1,940,000
Suffolk County [Member]
Branch Consolidation [Line Items]
Number of branches closed			6
Estimated annual operating expenses reduced			2,400,000
Middle Island and Water Mill [Member]
Branch Consolidation [Line Items]
Number of branches closed			2
One time cost to close branches			596,000
Accelerated depreciation			136,000
Branch consolidation costs			460,000
Occupancy expense			84,000
Equipment expense			52,000
Gain from offsetting one-time cost			404,000
Mattituck, Port Jefferson Station, Manorville and Montauk Harbor [Member]
Branch Consolidation [Line Items]
Number of branches closed			4
One time cost to close branches			2,000,000
Accelerated depreciation			371,000
Branch consolidation costs			1,600,000
Occupancy expense			192,000
Equipment expense			$ 179,000