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STOCK-BASED COMPENSATION - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended 69 Months Ended
Jun. 30, 2026
USD ($)
shares
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
plan
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2026
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of plans | plan     2    
Stock options exercised (in shares)     0 0  
Stock-based compensation expense | $ $ 0.3 $ 0.9 $ 0.9 $ 1.9  
2014 Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock options granted (in shares)     0    
Stock options exercised (in shares)     0    
2021 Plan | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period     1 year    
2021 Plan | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period     4 years    
Stock Options | 2014 Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock options granted (in shares)         0
Stock Options | 2021 Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock authorized for issuance (in shares) 376,261   376,261   376,261
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
RSU compensation cost not yet recognized | $ $ 0.8   $ 0.8   $ 0.8
Compensation cost not yet recognized, period of recognition     8 months 12 days    
Fair value of vested RSUs | $     $ 0.5