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SHARE BASED COMPENSATION (Details) - USD ($)
3 Months Ended
Jun. 21, 2017
May 01, 2017
Jul. 31, 2017
Jul. 31, 2016
Jul. 06, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense     $ 376,000 $ 262,000  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]          
Share price (in dollars per share)         $ 6.11
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] | 2018 LTIP Awards [Member] | Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares) 57,693 16,447      
Restricted shares vesting percentage 33.00% 33.00%      
2015 Incentive Plan [Member] | 2018 LTIP Awards [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares) 57,693        
Total unvested restricted share awards (in shares) 115,386        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]          
Volatility rate (in hundredths) 27.30%        
Risk-free interest rate (in hundredths) 1.48%        
Expected life 2 years 10 months 10 days        
Share price (in dollars per share) $ 6.15        
2015 Incentive Plan [Member] | 2018 LTIP Awards [Member] | Relative TSR Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares) 57,693