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FAIR VALUE OF FINANCIAL INSTRUMENTS, Quantitative Information (Details) - Appraised Collateral Values [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Impaired Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair Value $ 1,569 $ 2,033
Valuation Technique(s) Appraised Collateral Values Appraised Collateral Values
Impaired Loans [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Discount for time since appraisal 0.00% 0.00%
Selling costs 5.00% 5.00%
Holding period 6 months 6 months
Impaired Loans [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Discount for time since appraisal 100.00% 65.00%
Selling costs 9.00% 9.00%
Holding period 12 months 12 months
Impaired Loans [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Discount for time since appraisal 30.83% 28.98%
Selling costs 8.35% 7.56%
Holding period 11 months 11 months
Other Real Estate Owned [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair Value $ 1,024 $ 839
Valuation Technique(s) Appraised Collateral Values Appraised Collateral Values
Other Real Estate Owned [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Discount for time since appraisal 15.00% 10.00%
Other Real Estate Owned [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Discount for time since appraisal 65.00% 67.00%
Other Real Estate Owned [Member] | Weighted Average [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Discount for time since appraisal 26.26% 25.45%