v3.24.2
LEASES (Q1) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Lease Assets [Abstract]        
Operating lease cost ROU assets, net $ 313,800 $ 353,200 $ 353,200 $ 507,100
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Assets Assets Assets Assets
Total lease assets $ 313,800 $ 353,200 $ 353,200 $ 507,100
Lease Liabilities [Abstract]        
Operating lease liabilities, current $ 163,100 $ 160,300 $ 160,300 $ 149,400
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Current liabilities Current liabilities Current liabilities Current liabilities
Operating lease liabilities, non-current $ 159,800 $ 201,600 $ 201,600 $ 362,100
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Liabilities Liabilities Liabilities Liabilities
Total lease liabilities $ 322,900 $ 361,900 $ 361,900 $ 511,500
Lease Costs [Abstract]        
Operating lease costs 44,800 44,800 179,500 104,700
Total lease costs 44,800 44,800 179,500 104,700
Minimum Commitment Under Company leases [Abstract]        
2024 (remainder of) 136,100      
2025 185,800 180,400 180,400  
2026 31,300 185,800 185,800  
Total 353,200 397,500 397,500  
Amount representing interest 30,300 35,600 35,600  
Total lease liabilities $ 322,900 $ 361,900 $ 361,900 $ 511,500