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WARRANTS - Issued with the 2018 Notes (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Jun. 24, 2020
Feb. 24, 2020
Nov. 05, 2018
Dec. 31, 2022
Jan. 18, 2018
Warrants          
Warrants exercised (in shares)       1,750,000  
Warrants Issued with the 2018 Notes          
Warrants          
Initial fair value recorded as debt discount (in dollars)         $ 0.1
Warrants to purchase common stock (in shares)     76,847    
Warrants to purchase common stock (in dollars)     $ 0.3    
Exercise price (in dollars per share)     $ 6.59    
Warrants exercised (in shares) 20,331 386      
Stock issued in exercise of warrants (in shares) 17,369 333