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RETIREMENT PLANS (Narrative) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
USD ($)
person
Dec. 31, 2017
USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Accumulated Benefit Obligation $ 29,115 $ 30,228
Corporation Common Stock Included in Equity Securities $ 2,882 $ 2,114
Corporation Common Stock Included in Equity Securities, Percentage of Total Plan Assets 7.00% 5.00%
Percentage of participants average monthly pay used to calculate benefit accruals 0.75%  
Maximum years of benefit used to calculate benefit accruals 25 years  
Number of active, vested terminated, and retired persons in the Plan | person 353  
Employee contribution percentage, maximum 100.00%  
Balance accrued included in other liabilities $ 2,932 $ 2,803
Annual expense included in salaries and benefits expense $ 463 279
Banking Subsidiary    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Employer Match Percentage of Income 4.00%  
Employer Contributions to and Expenses for the Plan $ 664 626
Insurance Subsidiary    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Employer Contributions to and Expenses for the Plan $ 97 $ 86
Non highly compensated employees | Insurance Subsidiary    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Employer Match Percentage of Income 6.00%  
Highly Compensated Employees | Insurance Subsidiary    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Employer Match Percentage of Income 3.00%