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LOANS (Loans by class modified as troubled debt restructurings) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
Loans
Dec. 31, 2016
USD ($)
Loans
Financing Receivable, Modifications [Line Items]    
Number of Loans | Loans 1 1
Pre-Modification Outstanding Recorded Investment $ 3,875 $ 1,933
Post-Modification Outstanding Recorded Investment $ 3,875 $ 1,933
Real estate | Commercial    
Financing Receivable, Modifications [Line Items]    
Number of Loans | Loans 1  
Pre-Modification Outstanding Recorded Investment $ 3,875  
Post-Modification Outstanding Recorded Investment $ 3,875  
Commercial and industrial    
Financing Receivable, Modifications [Line Items]    
Number of Loans | Loans   1
Pre-Modification Outstanding Recorded Investment   $ 1,933
Post-Modification Outstanding Recorded Investment   $ 1,933