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STOCKHOLDERS' EQUITY - Schedule of Stock Option Activity (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2024
USD ($)
$ / shares
shares
Number of Shares  
Options outstanding at beginning of period (in shares) | shares 14,862,004
Options granted (in shares) | shares 400,000
Options exercised (in shares) | shares 0
Options forfeited and expired (in shares) | shares (4,566,063)
Options outstanding at end of period (in shares) | shares 10,695,941
Options exercisable at end of period (in shares) | shares 9,039,081
Weighted- Average Exercise per Share Price  
Options outstanding at beginning of period (in dollars per share) | $ / shares $ 6.95
Options granted (in dollars per share) | $ / shares 0.57
Options exercised (in dollars per share) | $ / shares 0
Options forfeited and expired (in dollars per share) | $ / shares 7.02
Options outstanding at end of period (in dollars per share) | $ / shares 6.68
Options exercisable at end of period (in dollars per share) | $ / shares $ 7.38
Weighted-Average Remaining Contractual Term  
Options outstanding at end of period (in years) 5 years 8 months 23 days
Options exercisable at end of period (in years) 5 years 3 months 10 days
Aggregate Intrinsic Value  
Options outstanding at end of period | $ $ 229,853
Options exercisable at end of period | $ $ 104,740