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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Mar. 13, 2020
Jun. 30, 2008
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2017
May 31, 2017
Jun. 30, 2016
May 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based compensation expense     $ 192 $ 415        
Restricted Stock                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Grant of restricted common stock (in shares)     106,000 198,000        
Restricted Stock | First anniversary                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage       33.33%        
Restricted Stock | Second anniversary                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage       33.33%        
Restricted Stock | Third anniversary                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage       33.33%        
Chief Executive Officer                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Common stock granted to CEO (in shares) 100,000              
2008 Stock Purchase Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Percentage of quoted market price offering rate   85.00%            
Restriction period   2 years            
Shares authorized under the plan (in shares)             350,000 150,000
2010 Long Term Incentive Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares reserved for future issuance (in shares)     980,000   680,000 380,000