Annual report pursuant to Section 13 and 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 ($)
Dec. 31, 2017
Dec. 31, 2016
Advances from Federal Home Loan Bank [Abstract]    
Advance amount $ 92,118,000 $ 84,173,000
Residential and commercial real estate loans pledged as collateral for Federal Home Loan Bank advances 493,200,000 425,000,000
Federal Home Loan Bank Advances [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Advance amount 92,118,000 84,173,000
Federal Home Loan Bank Advances [Member] | Single Maturity Fixed Rate Advances [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Advance amount $ 70,000,000 $ 80,000,000
Range of maturities, earliest 2018 2018
Range of maturities, last 2021 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 1.59% 1.60%
Federal Home Loan Bank Advances [Member] | Amortizable Mortgage Advances [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Advance amount $ 2,118,000 $ 4,173,000
Range of maturities, earliest 2018 2018
Range of maturities, last 2018 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% 3.78%
Federal Home Loan Bank Advances [Member] | Putable Advances [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Advance amount $ 20,000,000  
Range of maturities 2024  
Federal Home Loan Bank Advances [Member] | Putable Advances [Member] | Weighted Average [Member]    
Advances from Federal Home Loan Bank [Abstract]    
Interest rate 1.81%