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RETIREMENT PLANS, NARRATIVE (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Jul. 01, 2015
Jul. 01, 2014
Feb. 01, 2009
age_and_service
Defined Contribution Plan [Abstract]            
Age plus vesting service (less than, in years) | age_and_service           65
Employer's matching contribution to 401(k) of employees hired on or after January 1, 2009 50.00%          
Maximum annual contribution per employee, percent 3.00%          
Automatic Annual Contribution Employees Hired After January 1, 2009 Benefit Reduction Under Certain Amendments Minimum 5.00%          
Automatic Annual Contribution Employees Hired After January 1, 2009 Due Benefit Reduction Under Certain Amendments Maximum 7.00%          
Defined benefit plan, funded percentage       80.00% 80.00%  
Employer expected contribution to 401 (k) plan in next fiscal year $ 250          
Deferred Compensation Arrangements            
Deferred Compensation Arrangements [Abstract]            
Accrued interest on deferred compensation 8.00%          
Deferred compensation liability $ 3,199 $ 3,012        
Supplemental Employee Retirement Plan            
Supplemental income plan [Abstract]            
Projected benefit obligation $ 1,295 $ 1,106        
Discount rate 5.00% 5.30%        
Service cost $ 183 $ 43 $ 111      
Interest cost 56 $ 56 $ 47      
Qualified noncontributory defined benefit retirement plan            
Defined Contribution Plan [Abstract]            
Expected contribution by employer to noncontributory defined benefit plan $ 200          
Qualified noncontributory defined benefit retirement plan            
Supplemental income plan [Abstract]            
Discount rate 4.34% 3.95% 4.95%      
Service cost $ 38 $ 68 $ 71      
Interest cost 68 60 $ 46      
Recognized in other liabilities nonqualified defined benefit retirement plan 1,843 1,741        
Accumulated benefit obligation under nonqualified defined benefit retirement plan 1,752 $ 1,633        
Future amortization of prior service cost 168          
Citizens National Bank            
Defined Contribution Plan [Abstract]            
Qualified noncontributory defined benefit pension plan liability $ 40