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WARRANTS - Issued with the 2018 Notes (Details) - Warrants Issued with the 2018 Notes - USD ($)
$ / shares in Units, $ in Millions
Nov. 05, 2018
Mar. 31, 2024
Dec. 31, 2023
Jan. 18, 2018
Warrants        
Initial fair value recorded as debt discount (in dollars)       $ 0.1
Issuance of warrants (in shares) 76,847      
Issuance of warrants (in dollars) $ 0.3      
Exercise price (in dollars per share)   $ 3.98 $ 3.99