Quarterly report pursuant to Section 13 or 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Narrative) (Details)

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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Narrative) (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Gains on securities transactions, net $ 117,000 $ 3,000   $ 598,000 $ 146,000  
Tax expense (benefit) related to (gains) losses on the sale of securities 41,000 1,000   209,000 51,000  
Transfer from securities available for sale to securities held to maturity     $ 201,800,000      
Held to maturity securities unrealized gains before tax     $ 8,100,000 4,400,000   $ 5,200,000
Accretion expense 246,000 442,000   529,000 891,000  
Tax expense (benefit) related to (gains) losses for AFS securities transferred to HTM 86,000 155,000   185,000 312,000  
Tax expense (benefit) related to (gains) losses on the cash flow hedges (171,000) (74,000)   (269,000) (150,000)  
Reclassification adjustment for gains (losses) included in net income (167,000) 151,000   40,000 395,000  
Cash Flow Hedges | Interest Expense, Net            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Other comprehensive income (loss), reclassification adjustment from AOCI on derivatives, before tax 489,000 212,000   768,000 429,000  
Unrealized Gains (Losses) on BOLI            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Reclassification adjustment for gains (losses) included in net income $ (85,000) $ 0   $ (194,000) $ 0