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FAIR VALUE MEASUREMENTS - Fair Values of Company's Warrant Liability (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2022
USD ($)
Common Warrants  
Fair Value  
Initial fair value of Warrant Liability - Common Warrants $ 13,734
Change in fair value 3,331
Ending Balance 17,065
Pre-Funded Warrants  
Fair Value  
Initial fair value of Warrant Liability - Common Warrants 8,101
Warrants exercised (1,417)
Change in fair value 990
Ending Balance $ 7,674