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EMPLOYEE BENEFIT PLANS - Incentive Compensations Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock shares reserved   10,646,729    
Shares available for grant   1,679,176    
Stock based compensation expense   $ 1,692 $ 4,136  
Restricted stock grants- shares   326,221    
Weighted average grant date fair value (in dollars per share)   $ 12.19    
Stock option grants- shares   593,129    
Phantom Share Units (PSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Deferred compensation payout period 3 years      
Noncurrent deferred compensation liability   $ 1,600   $ 1,000
Share-based compensation expense   $ 600 100  
Restricted Stock And Restricted Stock Units [Member] | Consultant        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued       22,034
Performance cash        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award requisite service period   3 years    
Performance cash compensation liability   $ 5,000   $ 7,700
Performance cash compensation expense   $ 1,000 $ (3,000)