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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 |

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