LOANS (Details 2) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Loans by class categorized by internally assigned risk grades
Total loans	$ 2,262,655	$ 1,335,961
Pass
Loans by class categorized by internally assigned risk grades
Total loans	2,237,522	1,305,616
Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	10,357	12,607
Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 14,776	$ 17,738
Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial real estate: Owner occupied
Loans by class categorized by internally assigned risk grades
Total loans	$ 453,532	$ 256,608
Commercial real estate: Owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	445,106	243,512
Commercial real estate: Owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	4,526	7,133
Commercial real estate: Owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 3,900	$ 5,963
Commercial real estate: Owner occupied | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial real estate: Non-owner occupied
Loans by class categorized by internally assigned risk grades
Total loans	$ 552,801	$ 338,789
Commercial real estate: Non-owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	548,380	334,790
Commercial real estate: Non-owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	1,313	171
Commercial real estate: Non-owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 3,108	$ 3,828
Commercial real estate: Non-owner occupied | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Multi-family
Loans by class categorized by internally assigned risk grades
Total loans	$ 298,370	$ 218,985
Multi-family | Pass
Loans by class categorized by internally assigned risk grades
Total loans	298,341	217,855
Multi-family | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	3	202
Multi-family | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 26	$ 928
Multi-family | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Residential real estate: Residential mortgage
Loans by class categorized by internally assigned risk grades
Total loans	$ 308,226	$ 90,018
Residential real estate: Residential mortgage | Pass
Loans by class categorized by internally assigned risk grades
Total loans	$ 307,368	$ 88,405
Residential real estate: Residential mortgage | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans
Residential real estate: Residential mortgage | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 858	$ 1,613
Residential real estate: Residential mortgage | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Residential real estate: Home equity
Loans by class categorized by internally assigned risk grades
Total loans	$ 70,225	$ 66,138
Residential real estate: Home equity | Pass
Loans by class categorized by internally assigned risk grades
Total loans	68,317	64,994
Residential real estate: Home equity | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	522	212
Residential real estate: Home equity | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 1,386	$ 932
Residential real estate: Home equity | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial: Secured
Loans by class categorized by internally assigned risk grades
Total loans	$ 120,479	$ 93,967
Commercial: Secured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	118,107	91,007
Commercial: Secured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	176	621
Commercial: Secured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 2,196	$ 2,339
Commercial: Secured | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial: Unsecured
Loans by class categorized by internally assigned risk grades
Total loans	$ 361,704	$ 197,776
Commercial: Unsecured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	354,686	191,942
Commercial: Unsecured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	3,817	4,168
Commercial: Unsecured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 3,201	$ 1,666
Commercial: Unsecured | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Real Estate Construction and Land Loans
Loans by class categorized by internally assigned risk grades
Total loans	$ 82,792	$ 63,556
Real Estate Construction and Land Loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	$ 82,792	$ 63,190
Real Estate Construction and Land Loans | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans
Real Estate Construction and Land Loans | Substandard
Loans by class categorized by internally assigned risk grades
Total loans		$ 366
Real Estate Construction and Land Loans | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Installment/Consumer Loans
Loans by class categorized by internally assigned risk grades
Total loans	$ 14,526	$ 10,124
Installment/Consumer Loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	$ 14,425	9,921
Installment/Consumer Loans | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans		100
Installment/Consumer Loans | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 101	$ 103
Installment/Consumer Loans | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans