Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Schedule of Stock Option, Activity (Details)

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STOCK-BASED COMPENSATION - Schedule of Stock Option, Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Number of options outstanding    
Beginning balance (in shares) 6,092,525  
Options granted (in shares) 0  
Options exercised (in shares) 0  
Options cancelled (in shares) (25,748)  
Ending balance (in shares) 6,066,777 6,092,525
Weighted average exercise price    
Beginning balance (in dollars per share) $ 2.22  
Options granted (in dollars per share) 0  
Options exercised (in dollars per share) 0  
Options cancelled (in dollars per share) 2.41  
Ending balance (in dollars per share) $ 2.23 $ 2.22
Stock Options Additional Disclosures    
Average remaining contractual life 8 years 9 months 18 days 8 years 8 months 12 days
Aggregate intrinsic value, outstanding $ 2,402 $ 2,945
Exercisable (in shares) 1,526,836  
Exercisable, Weighted average exercise price (in dollars per share) $ 1.88  
Exercisable, Average remaining contractual life 7 years 4 months 24 days  
Exercisable, Aggregate intrinsic value $ 1,149