LOANS (Details 3) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Loans by class categorized by internally assigned risk grades
Total loans	$ 2,596,205	$ 2,407,522
Pass
Loans by class categorized by internally assigned risk grades
Total loans	2,511,904	2,380,596
Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	73,225	7,733
Substandard
Loans by class categorized by internally assigned risk grades
Total loans	11,076	19,193
Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial real estate | Mortgage loans
Loans by class categorized by internally assigned risk grades
Total loans	1,016,983	999,474
Commercial real estate | Mortgage loans | Owner occupied
Loans by class categorized by internally assigned risk grades
Total loans	424,215	471,321
Commercial real estate | Mortgage loans | Owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	404,584	465,967
Commercial real estate | Mortgage loans | Owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	18,909	3,239
Commercial real estate | Mortgage loans | Owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	722	2,115
Commercial real estate | Mortgage loans | Owner occupied | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial real estate | Mortgage loans | Non-owner occupied
Loans by class categorized by internally assigned risk grades
Total loans	592,768	528,153
Commercial real estate | Mortgage loans | Non-owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	569,870	519,124
Commercial real estate | Mortgage loans | Non-owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	20,035	542
Commercial real estate | Mortgage loans | Non-owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	2,863	8,487
Commercial real estate | Mortgage loans | Non-owner occupied | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Multi-family | Mortgage loans
Loans by class categorized by internally assigned risk grades
Total loans	518,146	350,793
Multi-family | Mortgage loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	518,146	350,785
Multi-family | Mortgage loans | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans
Multi-family | Mortgage loans | Substandard
Loans by class categorized by internally assigned risk grades
Total loans		8
Multi-family | Mortgage loans | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Residential real estate | Mortgage loans
Loans by class categorized by internally assigned risk grades
Total loans	439,653	446,740
Residential real estate | Mortgage loans | Residential
Loans by class categorized by internally assigned risk grades
Total loans	374,518	378,414
Residential real estate | Mortgage loans | Residential | Pass
Loans by class categorized by internally assigned risk grades
Total loans	372,853	377,482
Residential real estate | Mortgage loans | Residential | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	82	87
Residential real estate | Mortgage loans | Residential | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	1,583	845
Residential real estate | Mortgage loans | Residential | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Residential real estate | Mortgage loans | Home equity
Loans by class categorized by internally assigned risk grades
Total loans	65,135	68,326
Residential real estate | Mortgage loans | Home equity | Pass
Loans by class categorized by internally assigned risk grades
Total loans	64,195	66,910
Residential real estate | Mortgage loans | Home equity | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	563	523
Residential real estate | Mortgage loans | Home equity | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	377	893
Residential real estate | Mortgage loans | Home equity | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial, Industrial and Agricultural Loans
Loans by class categorized by internally assigned risk grades
Total loans	524,450	501,766
Commercial, Industrial and Agricultural Loans | Secured
Loans by class categorized by internally assigned risk grades
Total loans	109,234	123,737
Commercial, Industrial and Agricultural Loans | Secured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	75,837	121,037
Commercial, Industrial and Agricultural Loans | Secured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	31,143	151
Commercial, Industrial and Agricultural Loans | Secured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	2,254	2,549
Commercial, Industrial and Agricultural Loans | Secured | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial, Industrial and Agricultural Loans | Unsecured
Loans by class categorized by internally assigned risk grades
Total loans	415,216	378,029
Commercial, Industrial and Agricultural Loans | Unsecured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	409,879	370,642
Commercial, Industrial and Agricultural Loans | Unsecured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	2,493	3,191
Commercial, Industrial and Agricultural Loans | Unsecured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	2,844	4,196
Commercial, Industrial and Agricultural Loans | 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	80,605	91,153
Real estate construction and land loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	80,272	91,153
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	333
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	16,368	17,596
Installment/consumer loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	16,268	17,496
Installment/consumer loans | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans
Installment/consumer loans | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	100	100
Installment/consumer loans | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans