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EQUITY - Stock options (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jan. 27, 2021
Sep. 30, 2021
Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock based compensation   $ 1,762 $ 1,509
Stock options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation   800 $ 1,100
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Consecutive trading days 30 days    
Performance goals, percentage achieved 80.00%    
Decrease in performance options 2.00%    
Stock based compensation   $ 600  
Performance Shares | Performance Period, One      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock, price per share, threshold (in dollars per share) $ 10.50    
Performance Shares | Performance Period, Two      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock, price per share, threshold (in dollars per share) 13.50    
Performance Shares | Performance Period, Three      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock, price per share, threshold (in dollars per share) 16.50    
Performance Shares | Performance Period, Four      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock, price per share, threshold (in dollars per share) $ 19.50    
Performance Shares | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period   3 years  
Performance Shares | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period   4 years