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STOCK OPTIONS AND AWARDS (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Payment Arrangement, Noncash Expense   $ 7,678 $ 7,969 $ 6,219  
Total unrecognized compensation cost         $ 9,100
Unrecognized compensation cost, period for recognition (in years)   1 year 11 months 1 day      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized   4,311,365      
Share-based Compensation Arrangement by Share-based Payment Award, Other Share Increase (Decrease) 83,551        
Share-based Compensation Arrangement by Share-based Payment Award, Option Term   10 years      
Options outstanding at end of year 37,856 37,856 37,856   27,451
Activity for stock option plan [Roll Forward]          
Outstanding at beginning of year (in shares) 37,856 37,856      
Granted (in shares)   0 0 0  
Exercised (in shares)   (10,405)      
Forfeited or expired (in shares)   0      
Outstanding at end of year (in shares)   27,451 37,856    
Exercised (in shares)         27,451
Weighted average exercise price, outstanding at beginning of year (in dollars per share) $ 9.54 $ 9.54      
Weighted average exercise price, granted (in dollars per share)   0.00      
Weighted average exercise price, exercised (in dollars per share)   6.92      
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)   $ 10.53 $ 9.54    
Weighted average exercise price, Exercisable (in dollars per share)         $ 10.53
Weighted average remaining contractual term, outstanding at end of year (in years)   2 years 6 months 10 days      
Weighted average remaining contractual life, exercisable at end of year (in years)   2 years 6 months 10 days      
Aggregate intrinsic value, outstanding at end of year         $ 192
Aggregate intrinsic value, exercisable at end of year         $ 192
Share-based Payment Arrangement, Additional Disclosure [Abstract]          
Total intrinsic value of options exercised   $ 86 $ 462 $ 734  
Proceeds from exercise of stock options   72 90 284  
Share-based Payment Arrangement, Exercise of Option, Tax Benefit   1,776 1,844 1,439  
Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vested in period, total fair value   $ 6,100 $ 7,400 $ 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 530,569 530,569 462,446 468,372  
Number of shares granted   503,311 395,023 303,930  
Number of shares vested   (233,828) (295,633) (267,031)  
Number of shares forfeited   (36,769) (31,267) (42,825)  
Number of shares nonvested at end of year   763,283 530,569 462,446  
Weighted average of shares fair value, nonvested at beginning of year $ 27.19 $ 27.19 $ 26.39 $ 21.63  
Weighted average of shares fair value granted   18.62 26.55 28.94  
Weighted average of shares fair value vested   26.07 24.94 20.94  
Weighted average of shares fair value forfeited   23.79 28.63 26.38  
Weighted average of shares fair value, nonvested at end of year   $ 22.04 $ 27.19 $ 26.39