Annual report [Section 13 and 15(d), not S-K Item 405]

Note 9 - Commitments and Contingencies (Details Textual)

v3.26.1
Note 9 - Commitments and Contingencies (Details Textual) - USD ($)
10 Months Ended
Apr. 01, 2025
Jan. 16, 2025
Oct. 23, 2024
Nov. 01, 2025
Dec. 31, 2025
Sep. 30, 2025
Jan. 31, 2025
Dec. 31, 2024
Executive Headquarters in Illinois [Member]                
Lessee, Operating Lease, Term of Contract (Month) 36 months     36 months        
Operating Leases, Monthly Rent Expense $ 3,580     $ 5,002        
Wet Laboratory Space and Equipment Lease in North Chicago, Illinois [Member]                
Lessee, Operating Lease, Term of Contract (Month)   1 year            
Operating Leases, Monthly Rent Expense   $ 1,000            
Operating Leases, Cancellable, Term (Month)   6 months            
Operating Leases, Cancellable, Term of Advance Written Notice (Day)   30 days            
Maximum [Member] | XOMA Ltd. [Member]                
Indefinite-Lived License Agreements         $ 14,925,000      
License Agreement [Member]                
Stock Issued During Period, Shares, New Issues (in shares)     387,329          
Ownership Interest, License Agreement     9.90%          
Total Cash Payment for License Agreement     $ 4,000,000     $ 4,000,000    
Initial Cash Payment for License Agreement     1,000,000         $ 1,000,000
Additional Cash Payment for License Agreement     $ 3,000,000       $ 3,000,000  
Equity Agreement [Member]                
Percent of Outstanding Shares     9.90%          
Equity Capital Raised, Amount     $ 25,000,000          
Equity Capital Raised, Number of Shares (in shares)     705,015          
Stock Issued During Period, Shares, Antidilution Provisions (in shares)     157,188          
Milestone Payments         $ 0      
Equity Agreement [Member] | Maximum [Member]                
Milestone Payments     $ 94,000,000          
Royalty Payments, Percentage of Net Sales     20.00%          
Royalty Payments, Percentage of Sublicensing Income         45.00%      
Equity Agreement [Member] | Minimum [Member]                
Royalty Payments, Percentage of Net Sales     10.00%          
Royalty Payments, Percentage of Sublicensing Income         35.00%