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STOCK-BASED COMPENSATION - Schedule of restricted stock unit activity (Details) - Restricted Stock Units - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Number of Units    
Beginning Balance (in shares) 33 1,603
Granted (in shares) 19,049 0
Vested (in shares) (283) (1,570)
Forfeited (in shares) 0 0
Ending Balance (in shares) 18,799 33
Weighted Average Grant Date Fair Value Per Unit    
Beginning Balance (in dollars per share) $ 36.00 $ 82.60
Granted (in dollars per share) 2.87 0
Vested (in dollars per share) 17.67 84.40
Forfeited (in dollars per share) 0 0
Ending Balance (in dollars per share) $ 2.71 $ 36.00