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STOCK OPTIONS AND AWARDS (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Payment Arrangement, Noncash Expense $ 7,969 $ 6,219 $ 5,446  
Total unrecognized compensation cost       $ 8,500
Unrecognized compensation cost, period for recognition (in years) 1 year 11 months 4 days      
Share-based Compensation Arrangement by Share-based Payment Award, Option Term 10 years      
Options outstanding at end of year 37,856 62,410   37,856
Number of Shares Available for Grant       1,513,826
Activity for stock option plan [Roll Forward]        
Outstanding at beginning of year (in shares) 62,410      
Granted (in shares) 0 0 0  
Exercised (in shares) (24,554)      
Forfeited or expired (in shares) 0      
Outstanding at end of year (in shares) 37,856 62,410    
Exercised (in shares)       37,856
Weighted average exercise price, outstanding at beginning of year (in dollars per share) $ 9.08      
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      
Weighted average exercise price, exercised (in dollars per share) $ 8.37      
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) $ 9.54 $ 9.08    
Weighted average exercise price, Exercisable (in dollars per share)       $ 9.54
Weighted average remaining contractual term, outstanding at end of year (in years) 3 years 1 month 13 days      
Weighted average remaining contractual life, exercisable at end of year (in years) 3 years 1 month 13 days      
Aggregate intrinsic value, outstanding at end of year       $ 602
Aggregate intrinsic value, exercisable at end of year       $ 602
Share-based Payment Arrangement, Additional Disclosure [Abstract]        
Total intrinsic value of options exercised $ 462 $ 734 $ 1,533  
Proceeds from exercise of stock options 90 284 341  
Share-based Payment Arrangement, Exercise of Option, Tax Benefit 1,844 1,439 1,991  
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested in period, total fair value $ 7,400 $ 5,600 $ 5,600  
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 462,446 468,372 648,817  
Number of shares granted 395,023 303,930 234,529  
Number of shares vested (295,633) (267,031) (307,825)  
Number of shares forfeited (31,267) (42,825) (107,149)  
Number of shares nonvested at end of year 530,569 462,446 468,372  
Weighted average of shares fair value, nonvested at beginning of year $ 26.39 $ 21.63 $ 17.82  
Weighted average of shares fair value granted 26.55 28.94 27.36  
Weighted average of shares fair value vested 24.94 20.94 18.12  
Weighted average of shares fair value forfeited 28.63 26.38 21.18  
Weighted average of shares fair value, nonvested at end of year $ 27.19 $ 26.39 $ 21.63