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Borrowings (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]    
Repurchase Agreements $ 569,824,000 $ 396,151,000
Securities Pledged for Repurchase Agreements 711,210,000 $ 511,294,000
Loss on early payment of FHLB advances 3,531,000  
Lines of credit $ 230,000,000