LOANS (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Loans by class categorized by internally assigned risk grades
Total loans	$ 1,335,961	$ 1,011,525	$ 797,812
Pass
Loans by class categorized by internally assigned risk grades
Total loans	1,305,616	964,906
Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	12,607	26,709
Special Mention | FNBNY
Loans by class categorized by internally assigned risk grades
Total loans	300
Substandard
Loans by class categorized by internally assigned risk grades
Total loans	17,738	19,910
Substandard | FNBNY
Loans by class categorized by internally assigned risk grades
Total loans	1,500
Commercial real estate: Owner occupied
Loans by class categorized by internally assigned risk grades
Total loans	256,608	183,666
Commercial real estate: Owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	243,512	164,502
Commercial real estate: Owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	7,133	11,828
Commercial real estate: Owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	5,963	7,336
Commercial real estate: Non-owner occupied
Loans by class categorized by internally assigned risk grades
Total loans	338,789	301,234
Commercial real estate: Non-owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	334,790	291,758
Commercial real estate: Non-owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	171	5,490
Commercial real estate: Non-owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	3,828	3,986
Multi-family
Loans by class categorized by internally assigned risk grades
Total loans	218,985	107,488	66,080
Multi-family | Pass
Loans by class categorized by internally assigned risk grades
Total loans	217,855	107,488
Multi-family | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	202
Multi-family | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	928
Residential real estate: Residential mortgage/First lien
Loans by class categorized by internally assigned risk grades
Total loans	90,018	90,399
Residential real estate: Residential mortgage/First lien | Pass
Loans by class categorized by internally assigned risk grades
Total loans	88,405	87,288
Residential real estate: Residential mortgage/First lien | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans		264
Residential real estate: Residential mortgage/First lien | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	1,613	2,847
Residential real estate: Home equity
Loans by class categorized by internally assigned risk grades
Total loans	66,138	63,018
Residential real estate: Home equity | Pass
Loans by class categorized by internally assigned risk grades
Total loans	64,994	60,285
Residential real estate: Home equity | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	212	1,014
Residential real estate: Home equity | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	932	1,719
Commercial: Secured
Loans by class categorized by internally assigned risk grades
Total loans	93,967	75,970
Commercial: Secured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	91,007	69,475
Commercial: Secured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	621	4,320
Commercial: Secured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	2,339	2,175
Commercial: Unsecured
Loans by class categorized by internally assigned risk grades
Total loans	197,776	133,482
Commercial: Unsecured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	191,942	128,655
Commercial: Unsecured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	4,168	3,749
Commercial: Unsecured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	1,666	1,078
Real Estate Construction and Land Loans
Loans by class categorized by internally assigned risk grades
Total loans	63,556	46,981	48,632
Real Estate Construction and Land Loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	63,190	46,311
Real Estate Construction and Land Loans | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	366	670
Installment/Consumer Loans
Loans by class categorized by internally assigned risk grades
Total loans	10,124	9,287	9,167
Installment/Consumer Loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	9,921	9,144
Installment/Consumer Loans | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	100	44
Installment/Consumer Loans | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 103	$ 99