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STOCK OPTIONS AND AWARDS (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation $ 6,219 $ 5,446 $ 5,354  
Total unrecognized compensation cost       $ 6,900
Unrecognized compensation cost, period for recognition (in years) 1 year 343 days      
Share-based Compensation Arrangement by Share-based Payment Award, Option Term 10 years      
Options outstanding at end of year 11,800 11,800   62,410
Number of Shares Available for Grant       1,877,079
Activity for stock option plan [Roll Forward]        
Outstanding at beginning of year (in shares) 11,800      
Granted (in shares) 0 0 0  
Exercised (in shares) (32,941)      
Forfeited or expired (in shares) 0      
Outstanding at end of year (in shares) 62,410 11,800    
Exercised (in shares)       62,410
Weighted average exercise price, outstanding at beginning of year (in dollars per share) $ 11.64      
Weighted average exercise price, granted (in dollars per share) $ 0.00      
Share-based Compensation Arrangement by Share-based Payment Award, Other Share Increase (Decrease) 83,551      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Other Share Increase (Decrease) in Period, Weighted Average Exercise Price $ 8.54      
Weighted average exercise price, exercised (in dollars per share) 8.62      
Weighted average exercise price, forfeited or expired (in dollars per share) 0.00      
Weighted average exercise price, outstanding at end of year (in dollars per share) $ 9.08 $ 11.64    
Weighted average exercise price, Exercisable (in dollars per share)       $ 9.08
Weighted average remaining contractual term, outstanding at end of year (in years) 3 years 263 days      
Weighted average remaining contractual life, exercisable at end of year (in years) 3 years 263 days      
Aggregate intrinsic value, outstanding at end of year       $ 914
Aggregate intrinsic value, exercisable at end of year       $ 914
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]        
Total intrinsic value of options exercised $ 734 $ 1,533 $ 661  
Proceeds from exercise of stock options 284 341 801  
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options 1,439 1,991 1,958  
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested in period, total fair value $ 5,600 $ 5,600 $ 4,400  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Number of shares nonvested at beginning of year 468,372 648,817 643,641  
Number of shares granted 303,930 234,529 317,695  
Number of shares vested (267,031) (307,825) (263,713)  
Number of shares forfeited (42,825) (107,149) (48,806)  
Number of shares nonvested at end of year 462,446 468,372 648,817  
Weighted average of shares fair value, nonvested at beginning of year $ 21.63 $ 17.82 $ 17.21  
Weighted average of shares fair value granted 28.94 27.36 18.13  
Weighted average of shares fair value vested 20.94 18.12 16.82  
Weighted average of shares fair value forfeited 26.38 21.18 17.37  
Weighted average of shares fair value, nonvested at end of year $ 26.39 $ 21.63 $ 17.82