Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Narrative (Details)

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STOCK-BASED COMPENSATION - Narrative (Details) - $ / shares
1 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2017
Jun. 30, 2016
Sep. 30, 2021
Jan. 31, 2014
Common stock options            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options outstanding, weighted average exercise price per share (in dollars per share)         $ 4.60  
Options exercisable, weighted average exercise price per share (in dollars per share)         $ 4.82  
2014 Omnibus Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares of common stock approved for issuance (in shares)         14,950,000 1,400,000
Number of additional shares authorized (in shares) 5,000,000 4,000,000 3,250,000 1,300,000    
Number of shares available to issue (in shares)         3,510,309