v3.26.1
STOCK-BASED COMPENSATION PLANS - Schedule of Stock Option Activity (Details)
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Stock Options    
Outstanding beginning balance (in shares) | shares 18,152,258  
Granted (in shares) | shares 5,748,775  
Exercised (in shares) | shares (162,974)  
Expired (in shares) | shares (672,449)  
Canceled and forfeited (in shares) | shares (1,019,945)  
Outstanding ending balance (in shares) | shares 22,045,665 18,152,258
Options exercisable at end of period (in shares) | shares 11,510,155  
Weighted Average Exercise Price    
Outstanding beginning balance (in dollars per share) | $ / shares $ 2.85  
Granted (in dollars per share) | $ / shares 1.38  
Exercised (in dollars per share) | $ / shares 0.64  
Expired (in dollars per share) | $ / shares 5.75  
Canceled and forfeited (in dollars per share) | $ / shares 1.71  
Outstanding ending balance (in dollars per share) | $ / shares 2.45 $ 2.85
Options exercisable at end of period, weighted-average exercise price (in dollars per share) | $ / shares $ 3.17  
Weighted-Average Contractual Life (years)    
Options outstanding, weighted-average remaining contractual life (in years) 7 years 2 months 19 days 6 years 11 months 19 days
Options exercisable at end of period, weighted-average remaining contractual life (in years) 5 years 8 months 26 days  
Options outstanding, aggregate intrinsic value | $ $ 1,608 $ 3,690
Exercisable, aggregate intrinsic value | $ $ 1,292