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SUBSEQUENT EVENTS (Details) - USD ($)
$ / shares in Units, $ in Millions
Oct. 09, 2022
Sep. 30, 2022
2020 Series C Warrants Exercise price $1.62    
Subsequent events    
Exercise price (in dollars per unit)   $ 40.50
Placement Agent Warrants    
Subsequent events    
Exercise price (in dollars per unit)   $ 25.00
Subsequent event    
Subsequent events    
Number of shares issued (in shares) 154,000  
Proceeds from issuance of common stock and warrants $ 9.0  
Subsequent event | March 2020 Series A Warrants    
Subsequent events    
Warrants modified 29,091  
Subsequent event | 2020 Series C Warrants Exercise price $1.62    
Subsequent events    
Warrants modified 19,048  
Subsequent event | October 2022 Pre-Funded Warrants [Member]    
Subsequent events    
Warrants for purchase of common stock (in shares) 369,810  
Exercise price (in dollars per unit) $ 5.2499  
Subsequent event | October 2022 Private Placement Pre-Funded Warrants [Member]    
Subsequent events    
Warrants for purchase of common stock (in shares) 1,190,476  
Subsequent event | Preferred Investment Options [Member]    
Subsequent events    
Warrants for purchase of common stock (in shares) 1,714,286  
Exercise price (in dollars per unit) $ 5.25  
Subsequent event | Wainwright Preferred Investment Options [Member]    
Subsequent events    
Warrants for purchase of common stock (in shares) 111,429  
Subsequent event | October 2022 Financing [Member]    
Subsequent events    
Exercise price (in dollars per unit) $ 5.05  
Subsequent event | Series A Prefunded Warrants October 2020    
Subsequent events    
Warrants modified 32,000