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Derivatives (Interest rate swaps and their terms) (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Derivative [Line Items]  
Notional Amount $ 41,500
Interest rate swap designated as cash flow hedges - 1 Month LIBOR  
Derivative [Line Items]  
Notional Amount 31,955
Interest rate swap designated as cash flow hedges - 1 Month LIBOR | Rate 2.4210% [Member]  
Derivative [Line Items]  
Notional Amount $ 31,955
Fixed rate 2.421%