Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

v3.8.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2017
USD ($)
Branch
Grade
InterestRateSwap
Sep. 30, 2016
USD ($)
Sep. 30, 2017
USD ($)
Branch
Grade
InterestRateSwap
Sep. 30, 2016
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]            
Number of full service branch offices | Branch 26   26      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Trust and investment management fees $ 801 $ 790 $ 2,412 $ 2,286    
Residential Mortgage [Member]            
Allowance for Loan Losses [Abstract]            
Period of historical loss experience applied to loans for estimating allowance for general component of non-classified loans     12 months      
Commercial [Member]            
Allowance for Loan Losses [Abstract]            
Period of historical loss experience applied to loans for estimating allowance for general component of non-classified loans     18 months      
Threshold balance of loans evaluated for impairment $ 500   $ 500      
Commercial [Member] | Minimum [Member]            
Allowance for Loan Losses [Abstract]            
Internal risk grading of loans evaluated for impairment | Grade 6   6      
Commercial Real Estate [Member]            
Allowance for Loan Losses [Abstract]            
Threshold balance of loans evaluated for impairment $ 500   $ 500      
Commercial Real Estate [Member] | Minimum [Member]            
Allowance for Loan Losses [Abstract]            
Internal risk grading of loans evaluated for impairment | Grade 6   6      
Consumer [Member]            
Allowance for Loan Losses [Abstract]            
Period of historical loss experience applied to loans for estimating allowance for general component of non-classified loans     12 months      
Swap [Member] | Interest Rate Swap [Member]            
Derivatives [Abstract]            
Number of derivative instruments held | InterestRateSwap 2   2      
Notional amount of agreements $ 42,700   $ 42,700     $ 48,100
Derivative asset fair value 351   351     494
Derivative liability fair value $ 351   $ 351     $ 494
Accounting Standards Update 2014-09 [Member] | Scenario, Forecast [Member] | Maximum [Member]            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Trust and investment management fees         $ 60