v3.24.2
FAIR VALUE MEASUREMENT, Key Assumptions (FY) (Details)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Key Assumptions [Abstract]    
Probability of SPAC Merger 39.00% 48.00%
Term of SPAC Merger 3 months 6 months
Stock Price [Member]    
Key Assumptions [Abstract]    
Derivative liability, measurement input 17.5 15
Strike Price [Member] | Minimum [Member]    
Key Assumptions [Abstract]    
Derivative liability, measurement input 4 4
Strike Price [Member] | Maximum [Member]    
Key Assumptions [Abstract]    
Derivative liability, measurement input 10 10
Volatility [Member] | Minimum [Member]    
Key Assumptions [Abstract]    
Derivative liability, measurement input 0.697 0.795
Volatility [Member] | Maximum [Member]    
Key Assumptions [Abstract]    
Derivative liability, measurement input 0.82 0.839
Risk-Free Rate [Member] | Minimum [Member]    
Key Assumptions [Abstract]    
Derivative liability, measurement input 0.054 0.0106
Risk-Free Rate [Member] | Maximum [Member]    
Key Assumptions [Abstract]    
Derivative liability, measurement input 0.0555 0.0476