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Acquisition of In-process research and development asset ("IPR&D") (Narrative) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 02, 2027
Sep. 02, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Asset Acquisition [Line Items]            
Research and development     $ 1,952,780 $ 1,684,783 $ 9,564,865 $ 5,130,561
Pfizer [Member] | CD228V rights [Member]            
Asset Acquisition [Line Items]            
Payments for acquisition of assets   $ 12,000,000        
Development funding received         2,000,000  
Research and development         $ 10,000,000  
Pfizer [Member] | CD228V rights [Member] | Subsequent Event [Member]            
Asset Acquisition [Line Items]            
Payments for acquisition of assets $ 15,000,000