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Derivative Financial Instruments and Repurchase Agreements (Details Textual) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Derivative Financial Instruments and Repurchase Agreements (Textual)    
Notional amount of customer-facing swaps $ 77,600 $ 49,900
Cash as collateral 4,600  
Mortgage-backed securities $ 4,600 $ 13,300
Securities maturity, description These securities have various maturity dates beyond 2022.