LOANS (Details 1) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Loans by class categorized by internally assigned risk grades
Total loans	$ 2,477,862	$ 2,407,522
Pass
Loans by class categorized by internally assigned risk grades
Total loans	2,454,169	2,380,596
Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	6,938	7,733
Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 16,755	$ 19,193
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	$ 471,557	$ 471,321
Commercial real estate: Owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	467,139	465,967
Commercial real estate: Owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	2,557	3,239
Commercial real estate: Owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 1,861	$ 2,115
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	$ 539,511	$ 582,078
Commercial real estate: Non-owner occupied | Pass
Loans by class categorized by internally assigned risk grades
Total loans	532,504	573,049
Commercial real estate: Non-owner occupied | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	525	542
Commercial real estate: Non-owner occupied | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 6,482	$ 8,487
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	$ 380,125	$ 350,793
Multi-family | Pass
Loans by class categorized by internally assigned risk grades
Total loans	$ 379,743	$ 350,785
Multi-family | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans
Multi-family | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 382	$ 8
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	$ 378,615	$ 324,489
Residential real estate: Residential mortgage | Pass
Loans by class categorized by internally assigned risk grades
Total loans	377,437	323,557
Residential real estate: Residential mortgage | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	86	87
Residential real estate: Residential mortgage | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 1,092	$ 845
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	$ 69,549	$ 68,326
Residential real estate: Home equity | Pass
Loans by class categorized by internally assigned risk grades
Total loans	68,016	66,910
Residential real estate: Home equity | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	517	523
Residential real estate: Home equity | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 1,016	$ 893
Residential real estate: Home equity | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial and Industrial: Secured
Loans by class categorized by internally assigned risk grades
Total loans	$ 116,176	$ 123,737
Commercial and Industrial: Secured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	113,867	121,037
Commercial and Industrial: Secured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	284	151
Commercial and Industrial: Secured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 2,025	$ 2,549
Commercial and Industrial: Secured | Doubtful
Loans by class categorized by internally assigned risk grades
Total loans
Commercial and Industrial: Unsecured
Loans by class categorized by internally assigned risk grades
Total loans	$ 395,014	$ 378,029
Commercial and Industrial: Unsecured | Pass
Loans by class categorized by internally assigned risk grades
Total loans	388,248	370,642
Commercial and Industrial: Unsecured | Special Mention
Loans by class categorized by internally assigned risk grades
Total loans	2,969	3,191
Commercial and Industrial: Unsecured | Substandard
Loans by class categorized by internally assigned risk grades
Total loans	$ 3,797	$ 4,196
Commercial and Industrial: 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	$ 111,180	$ 91,153
Real estate construction and land loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	$ 111,180	$ 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
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	$ 16,135	$ 17,596
Installment/consumer loans | Pass
Loans by class categorized by internally assigned risk grades
Total loans	$ 16,035	$ 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