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SHARE-BASED COMPENSATION (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 08, 2019
Mar. 31, 2019
Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Stock-based compensation expense   $ 416 $ 404
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 | Relative TSR Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
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 (in hundredths)   25.50%  
Risk-free interest rate (in hundredths)   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]      
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%