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STOCK BASED COMPENSATION PLANS - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted | 63,267 |  |
Stock Option |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense | $ 197 | $ 91 | $ 0
Unrecognized compensation cost related to unvested stock options | $ 341 |  |
Cost is expected to be recognized period | 1 year 9 months 18 days |  |
Restricted Stock Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted | 78,952 |  |
Number of restricted stock awards unvested | 293,717 | 324,882 |
Restricted Stock Awards | Time-vested RSAs vest |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards unvested | 282,784 |  |
Restricted Stock Awards | Performance-based RSAs vest |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards unvested | 10,933 |  |
Directors | Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period (in years) | 1 year |  |
Deferred compensation expense | $ 570 | $ 560 | 530
2019 Equity Incentive Plan | Restricted Stock Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense | 2,200 | $ 2,400 | $ 1,700
Number of restricted stock awards granted |  | 83,782 | 71,781
Total fair value of shares vested | 2,500 | $ 1,500 | $ 1,100
Unrecognized compensation cost related to non-vested RSAs | $ 4,700 |  |
Cost is expected to be recognized period | 3 years |  |
2019 Equity Incentive Plan | Restricted Stock Awards | Seven year specified vesting schedule |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted |  |  | 31,860
Vesting period (in years) |  |  | 7 years
Year in vesting schedule in which one-third of the awards vest, period two |  |  | 6 years
Year in vesting schedule in which one-third of the awards vest, period three |  |  | 7 years
2019 Equity Incentive Plan | Restricted Stock Awards | Five year specified vesting schedule |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted | 49,925 | 44,750 | 25,396
Vesting period (in years) | 5 years |  | 5 years
Year in vesting schedule in which one-third of the awards vest, period one |  | 5 years | 5 years
Year in vesting schedule in which one-third of the awards vest, period three |  |  | 5 years
2019 Equity Incentive Plan | Restricted Stock Awards | Four year ratable vesting |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Year in vesting schedule in which one-third of the awards vest, period two |  |  | 4 years
2019 Equity Incentive Plan | Restricted Stock Awards | Three year specified vesting schedule |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted |  | 13,915 |
Year in vesting schedule in which one-third of the awards vest, period one |  | 3 years | 3 years
2019 Equity Incentive Plan | Restricted Stock Awards | Three year ratable vesting |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted | 29,027 |  | 11,070
Vesting period (in years) | 3 years | 2 years | 3 years
2019 Equity Incentive Plan | Restricted Stock Awards | Two year ratable vesting |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted |  | 25,117 |
2019 Equity Incentive Plan | Restricted Stock Awards | Nine months ratable vesting schedule |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted |  |  | 3,455
LTI Plan | Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense | $ 693 | $ 462 | $ 309
Number of restricted stock awards granted | 22,305 |  |
Number of restricted stock awards unvested | 85,342 | 79,238 |
Unrecognized compensation cost related to non-vested RSAs | $ 1,300 |  |
Cost is expected to be recognized period | 2 years 8 months 12 days |  |
LTI Plan | Restricted Stock Units | Time-vested RSAs vest ratably over five years |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted | 13,255 |  |
Vesting period (in years) | 5 years |  |
LTI Plan | Restricted Stock Units | Performance-based RSAs vest |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted | 9,050 |  |
Vesting period (in years) | 3 years |  |
LTI Plan | NEOs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted | 63,267 | 47,393 | 0
Percentage premium over the grant date stock price | 10.00% | 10.00% |
Vesting period (in years) | 3 years | 3 years |
Weighted-average grant-date fair value | $ 5.05 | $ 6.52 |
Method used | Black-Scholes option-pricing model |  |
LTI Plan | NEOs | Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted |  | 21,693 |
LTI Plan | NEOs | Restricted Stock Units | Time-vested RSAs vest ratably over five years |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted |  | 12,522 |
Vesting period (in years) |  | 5 years |
LTI Plan | NEOs | Restricted Stock Units | Performance-based RSAs vest |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of restricted stock awards granted |  | 9,171 |
Vesting period (in years) |  | 3 years |

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