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SHARE-BASED COMPENSATION (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 13, 2019
May 17, 2019
Mar. 08, 2019
Jun. 30, 2019
Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]          
Stock-based compensation expense       $ 981 $ 611
2015 Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares (in shares)       425,000  
Term of award       10 years  
2015 Incentive Plan | Award In 2019 | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Awards granted (in shares) 7,521 812      
2015 Incentive Plan | Award In 2019 | Relative TSR Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Awards granted (in shares)     12,781    
2015 Incentive Plan | Award In 2019 | Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period       3 years  
Total unvested restricted share awards (in shares)       25,562  
Percentage of the RSUs awarded       200.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]          
Volatility rate       25.50%  
Risk-free interest rate       2.43%  
Expected life       2 years 9 months 25 days  
Share price (in dollars per share)     $ 58.06    
Management | 2015 Incentive Plan | Award In 2019 | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Awards granted (in shares)     6,391    
Tranche One | 2015 Incentive Plan | Award In 2019 | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted shares vesting percentage     33.33%    
Tranche Two | 2015 Incentive Plan | Award In 2019 | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted shares vesting percentage     33.33%    
Tranche Three | 2015 Incentive Plan | Award In 2019 | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted shares vesting percentage     33.33%