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SHARE-BASED COMPENSATION (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jul. 20, 2018
Jul. 31, 2018
Jul. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Stock-based compensation expense   $ 265 $ 376
2015 Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares (in shares)   4,250,000  
Term of award   10 years  
2015 Incentive Plan [Member] | 2019 LTIP Awards [Member] | Relative TSR Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 149,846    
2015 Incentive Plan [Member] | 2018 LTIP Awards [Member] | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Total unvested restricted share awards (in shares) 299,692    
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) 28.60%    
Risk-free interest rate (in hundredths) 2.66%    
Expected life 2 years 9 months 11 days    
Share price (in dollars per share) $ 5.36    
Year One [Member] | 2015 Incentive Plan [Member] | 2019 LTIP Awards [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted shares vesting percentage 33.33%    
Year Two [Member] | 2015 Incentive Plan [Member] | 2019 LTIP Awards [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted shares vesting percentage 33.33%    
Year Three [Member] | 2015 Incentive Plan [Member] | 2019 LTIP Awards [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted shares vesting percentage 33.33%    
Trustee [Member] | 2015 Incentive Plan [Member] | 2019 LTIP Awards [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 64,972    
Management [Member] | 2015 Incentive Plan [Member] | 2019 LTIP Awards [Member] | Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 74,920