Quarterly report pursuant to Section 13 or 15(d)

OTHER BORROWED FUNDS, Federal Home Loan Bank Advances (Details)

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OTHER BORROWED FUNDS, Federal Home Loan Bank Advances (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Advances from Federal Home Loan Bank [Abstract]    
Advance amount $ 70,000 $ 92,118
Residential and commercial real estate loans pledged as collateral for Federal Home Loan Bank advances 470,800 493,200
Federal Home Loan Bank Advances [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Advance amount 70,000 92,118
Federal Home Loan Bank Advances [Member] | Single Maturity Fixed Rate Advances [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Advance amount $ 50,000 $ 70,000
Range of maturities, earliest 2018 2018
Range of maturities, last 2024 2021
Federal Home Loan Bank Advances [Member] | Single Maturity Fixed Rate Advances [Member] | Weighted Average [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Interest rate 2.15% 1.59%
Federal Home Loan Bank Advances [Member] | Amortizable Mortgage Advances [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Advance amount   $ 2,118
Range of maturities, earliest   2018
Range of maturities, last   2018
Federal Home Loan Bank Advances [Member] | Amortizable Mortgage Advances [Member] | Weighted Average [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Interest rate   3.78%
Federal Home Loan Bank Advances [Member] | Putable Advances [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Advance amount $ 20,000 $ 20,000
Range of maturities 2024 2024
Federal Home Loan Bank Advances [Member] | Putable Advances [Member] | Weighted Average [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Interest rate 1.81% 1.81%