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RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
LifeSci Advisors, LLC    
Related Party Transaction [Line Items]    
Related party transaction, expense $ 64 $ 61
LifeSci Communications, LLC    
Related Party Transaction [Line Items]    
Related party transaction, expense $ 74 $ 77