Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVES (Narrative) (Details)

v3.19.1
DERIVATIVES (Narrative) (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 13, 2016
USD ($)
interest_rate_swap
Mar. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Derivatives, Fair Value [Line Items]      
Number of interest rate swaps terminated (interest rate swap) | interest_rate_swap 3    
Cash Flow Hedges      
Derivatives, Fair Value [Line Items]      
Unrealized gain within accumulated other comprehensive income, to be reclassified into earnings $ 1,300    
Estimated net amount of gains expected to be reclassified into earnings within the next twelve months   $ 195  
Fair Value Hedges      
Derivatives, Fair Value [Line Items]      
Aggregate notional amount of the hedged items   86,500 $ 87,600
Fair value of aggregate notional amount of the hedged items, unrealized loss   299 1,600
Available-for-sale Securities      
Derivatives, Fair Value [Line Items]      
Fair value of aggregate notional amount of the hedged items, unrealized loss   2,400 1,400
Available-for-sale Securities | Fair Value Hedges      
Derivatives, Fair Value [Line Items]      
Aggregate notional amount of the hedged items   50,000 50,000
Fair value of aggregate notional amount of the hedged items, unrealized loss   $ 2,400 $ 1,400