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Repurchase Agreements and Other Borrowings (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Repurchase Agreements and Other Borrowings [Abstract]    
Securities Sold under Agreements to Repurchase $ 174,530 $ 192,330
Securities Sold under Agreements to Repurchase Increase (Decrease) (17,800)  
Disclosure of Repurchase Agreements [Abstract]    
Securities pledged to Repurchase Agreements $ 174,530 192,330
Securities Sold Under Agreements to Repurchase Weighted Average Rate 0.60%  
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term   120,000
FHLB Advance, 2-Year Original Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 2-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.75%  
FHLB Advance 5-Year Original Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 2,000  
Federal Home Loan Bank Advances, Original Maturity Term 5-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 1.89%  
FHLB Advance, 14-Month Original Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 10,000  
Federal Home Loan Bank Advances, Original Maturity Term 14-month maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.88%  
FHLB Advance 1.5-Year Original Maturity 2 [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 1.5-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.67%  
FHLB advance, 3-Year Original Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 4,000  
Federal Home Loan Bank Advances, Original Maturity Term 3-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.40%  
FHLB Advance 2.5 Year Original Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 2.5-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 1.67%  
FHLB Advance 4-Year Original Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 4-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 1.79%  
FHLB Advance 1.5-Year Original Maturity 3 [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 10,000  
Federal Home Loan Bank Advances, Original Maturity Term 1.5 year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.95%  
FHLB Advance 3 Year Original Maturity 3 [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 3-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 1.75%  
FHLB advance, 6-Year Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 6-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.30%  
FHLB Advance 3.5 Year Original Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 3.5-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 1.83%  
FHLB Advance 5-Year Original Maturity 2 [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 5-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 1.85%  
FHLB Advance, 7 Year Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 7-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.55%  
FHLB Advance 5-Year Original Maturity 3 [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 5-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.71%  
FHLB advance, 8-Year Maturity [Member]    
FHLB Advances [Abstract]    
Federal Home Loan Bank Advances Short and Long Term $ 5,000  
Federal Home Loan Bank Advances, Original Maturity Term 8-year maturity  
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate 2.40%  
U.S. Treasury securities and obligations of U.S. government corporations & agencies    
Disclosure of Repurchase Agreements [Abstract]    
Securities pledged to Repurchase Agreements $ 93,338 130,893
Residential Mortgage-backed Securities [Member]    
Disclosure of Repurchase Agreements [Abstract]    
Securities pledged to Repurchase Agreements $ 81,192 $ 61,437