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STOCK-BASED COMPENSATION (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Stock-based compensation        
Stock-based compensation expense $ 1,625 $ 2,021 $ 4,070 $ 4,395
Stock-based compensation awards granted (in shares)     175,470 196,520
Stock options        
Stock-based compensation        
Stock-based compensation expense 33 79 $ 154 $ 170
Stock options granted (in shares)     6,430 6,858
Unrecognized compensation expense 197   $ 197  
Weighted-average vesting period (years)     2 years  
Stock appreciation rights        
Stock-based compensation        
Stock-based compensation expense 408 486 $ 1,175 $ 974
Other than options granted (in shares)     69,360 71,262
Unrecognized compensation expense 2,581   $ 2,581  
Weighted-average vesting period (years)     2 years  
Restricted stock        
Stock-based compensation        
Stock-based compensation expense 677 888 $ 1,956 $ 2,314
Other than options granted (in shares)     42,260 50,380
Unrecognized compensation expense 5,744   $ 5,744  
Weighted-average vesting period (years)     3 years 2 months 12 days  
Performance stock        
Stock-based compensation        
Stock-based compensation expense 507 $ 568 $ 785 $ 937
Other than options granted (in shares)     57,420 68,020
Unrecognized compensation expense $ 1,307   $ 1,307  
Weighted-average vesting period (years)     1 year 8 months 12 days  
Performance stock | Maximum        
Stock-based compensation        
Earn out basis if all goals are met (as a percent) 200.00% 200.00% 200.00% 200.00%