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SUBORDINATED DEBENTURES (Details) - USD ($)
$ in Thousands
1 Months Ended
Sep. 30, 2015
Mar. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]      
Fixed-to-floating rate subordinated debentures $ 80,000    
Subordinated debentures, net   $ 78,815 $ 78,781
Subordinated Debentures | Callable Notes After Five Years      
Debt Instrument [Line Items]      
Fixed-to-floating rate subordinated debentures $ 40,000    
Fixed annual interest rate 5.25%    
Debt instrument variable rate description three-month LIBOR    
Basis points 3.60%    
Subordinated Debentures | Callable Notes After Ten Years      
Debt Instrument [Line Items]      
Fixed-to-floating rate subordinated debentures $ 40,000    
Fixed annual interest rate 5.75%    
Debt instrument variable rate description three-month LIBOR    
Basis points 3.45%