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WARRANTS - Warrants Issued with Series B Preferred Stock (Details) - Warrants Issued with Series B Preferred Stock
$ / shares in Units, $ in Millions
1 Months Ended 2 Months Ended
Feb. 28, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
shares
Mar. 31, 2024
Y
$ / shares
Dec. 31, 2023
$ / shares
2018 Warrants        
Warrants        
Number of warrants entity became obligated to issue (in shares) | shares   72,261    
Issuance of warrants (in dollars) | $   $ 0.2    
Expiration term   10 years    
Exercise price (in dollars per share) | $ / shares     $ 4.84 $ 4.86
2018 Warrants | Expected term (in years)        
Warrants        
Measurement input | Y     10.0  
2018 Warrants | Volatility        
Warrants        
Measurement input     0.7322  
2018 Warrants | Risk-free interest rate        
Warrants        
Measurement input     0.0270  
2018 Warrants | Dividend yield        
Warrants        
Measurement input     0.0000  
2019 Warrants        
Warrants        
Number of warrants entity became obligated to issue (in shares) | shares 23,867      
Issuance of warrants (in dollars) | $ $ 0.1      
Expiration term 10 years      
Exercise price (in dollars per share) | $ / shares     $ 4.84 $ 4.86
2019 Warrants | Expected term (in years)        
Warrants        
Measurement input | Y     10.0  
2019 Warrants | Volatility        
Warrants        
Measurement input     0.7322  
2019 Warrants | Risk-free interest rate        
Warrants        
Measurement input     0.0270  
2019 Warrants | Dividend yield        
Warrants        
Measurement input     0.0000