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STOCK-BASED COMPENSATION - Summary of Stock Options (Details)
 6 Months Ended
Jun. 30, 2022
$ / shares
shares
Number of options  
Outstanding, beginning of period (in shares) | shares 5,397,691
Granted (in shares) | shares 1,478,419
Exercised (in shares) | shares (119,840)
Canceled and forfeited (in shares) | shares (76,997)
Outstanding, end of period (in shares) | shares 6,679,273
Weighted average exercise price  
Outstanding, beginning of period (in dollars per share) | $ / shares $ 5.95
Granted (in dollars per share) | $ / shares 10.96
Exercised (in dollars per share) | $ / shares 4.46
Canceled and forfeited (in dollars per shares) | $ / shares 9.81
Outstanding, end of period (in dollars per share) | $ / shares $ 7.04