LOANS (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Loans by class categorized by internally assigned risk grades
Total loans	$ 1,400,629	$ 1,335,961
Pass
Loans by class categorized by internally assigned risk grades
Total loans	1,372,155	1,305,616
Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	11,647	12,607
Special Mention | FNBNY
Loans by class categorized by internally assigned risk grades
Total loans	200		300
Substandard
Loans by class categorized by internally assigned risk grades
Total loans	16,827	17,738
Substandard | FNBNY
Loans by class categorized by internally assigned risk grades
Total loans	1,100		1,500
Commercial real estate: Owner occupied
Loans by class categorized by internally assigned risk grades
Total loans	260,921	256,608
Commercial real estate: Owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	249,262	243,512
Commercial real estate: Owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	5,729	7,133
Commercial real estate: Owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	5,930	5,963
Commercial real estate: Non-owner occupied
Loans by class categorized by internally assigned risk grades
Total loans	364,234	338,789
Commercial real estate: Non-owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	358,908	334,790
Commercial real estate: Non-owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	1,334	171
Commercial real estate: Non-owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	3,992	3,828
Multi-family
Loans by class categorized by internally assigned risk grades
Total loans	246,485	218,985
Multi-family | Pass
Loans by class categorized by internally assigned risk grades
Total loans	246,384	217,855
Multi-family | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	16	202
Multi-family | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	85	928
Residential real estate: Residential mortgage/First lien
Loans by class categorized by internally assigned risk grades
Total loans	89,113	90,018
Residential real estate: Residential mortgage/First lien | Pass
Loans by class categorized by internally assigned risk grades
Total loans	88,177	88,405
Residential real estate: Residential mortgage/First lien | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	936	1,613
Residential real estate: Home equity
Loans by class categorized by internally assigned risk grades
Total loans	68,091	66,138
Residential real estate: Home equity | Pass
Loans by class categorized by internally assigned risk grades
Total loans	66,353	64,994
Residential real estate: Home equity | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	359	212
Residential real estate: Home equity | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	1,379	932
Commercial: Secured
Loans by class categorized by internally assigned risk grades
Total loans	94,273	93,967
Commercial: Secured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	91,425	91,007
Commercial: Secured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	419	621
Commercial: Secured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	2,429	2,339
Commercial: Unsecured
Loans by class categorized by internally assigned risk grades
Total loans	203,352	197,776
Commercial: Unsecured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	198,053	191,942
Commercial: Unsecured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	3,690	4,168
Commercial: Unsecured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	1,609	1,666
Real Estate Construction and Land Loans
Loans by class categorized by internally assigned risk grades
Total loans	63,377	63,556
Real Estate Construction and Land Loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	63,012	63,190
Real Estate Construction and Land Loans | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	365	366
Installment/Consumer Loans
Loans by class categorized by internally assigned risk grades
Total loans	10,783	10,124
Installment/Consumer Loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	10,581	9,921
Installment/Consumer Loans | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	100	100
Installment/Consumer Loans | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 102	$ 103