v3.24.2
CONVERTIBLE PROMISSORY NOTES AND WARRANTS, Convertible promissory notes (Q1) (Details) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Debt, Long-Term and Short-Term, Combined Amount [Abstract]        
Face amount $ 98,258,000 $ 40,700,000    
Debt Issuance costs (240,000) (240,000)    
Nominal value of Convertible Promissory Notes 98,018,000 40,460,000    
Less: Derivative liability component (37,234,800) (37,234,800)    
Liability component at date of issue 60,783,200 3,225,200    
Interest charged 44,939,400 42,121,800    
Loss on extinguishment of debt 542,300 0    
Total Liability component 106,264,900 45,347,000    
Less: Conversion to Paid in Capital (56,107,100) 0    
Less: Short-term liability component (50,157,800) (41,818,800) $ (4,123,900)  
Liability component 0 3,528,200 0  
Embedded feature Component [Abstract]        
Derivative liability Component 37,234,800 37,234,800    
Change in fair value of embedded derivative 207,084,100 (18,832,000)    
Total Derivative Liability Component 244,318,900 18,402,800 14,905,300 $ 75,355,200
Less: Conversion to Paid in Capital (244,318,900) 0    
Less: Short-term derivative liability component 0 (17,282,500) (14,905,300)  
Derivative Liability Component 0 1,120,300 0  
Future Minimum payment of note payable year 2025 $ 50,157,800      
Minimum [Member]        
Embedded feature Component [Abstract]        
Debt instrument effective rate percentage 16.30%      
Maximum [Member]        
Embedded feature Component [Abstract]        
Debt instrument effective rate percentage 100.00%      
Convertible Promissory Notes 1-7 [Member]        
Debt, Long-Term and Short-Term, Combined Amount [Abstract]        
Face amount $ 5,340,000 5,340,000 5,340,000  
Convertible Promissory Notes 8 -12 [Member]        
Debt, Long-Term and Short-Term, Combined Amount [Abstract]        
Face amount 17,500,000 17,500,000 17,500,000  
Convertible Promissory Notes 13 -20 [Member]        
Debt, Long-Term and Short-Term, Combined Amount [Abstract]        
Face amount 17,860,000 17,860,000 $ 15,360,000  
Convertible Promissory Notes 21 - 23 [Member]        
Debt, Long-Term and Short-Term, Combined Amount [Abstract]        
Face amount 7,455,000 0    
Digital World Convertible Notes [Member]        
Debt, Long-Term and Short-Term, Combined Amount [Abstract]        
Face amount $ 50,103,000 $ 0