Quarterly report [Sections 13 or 15(d)]

Note 15 - Sale of ENTADFI Assets (Details Textual)

v3.25.2
Note 15 - Sale of ENTADFI Assets (Details Textual)
 3 Months Ended 9 Months Ended
Aug. 08, 2025
Nov. 26, 2024
USD ($)
Sep. 30, 2024
Sep. 24, 2024
shares
Apr. 24, 2024
USD ($)
Sep. 29, 2023
USD ($)
$ / shares
shares
Apr. 19, 2023
USD ($)
Jun. 30, 2025
USD ($)
shares
Dec. 31, 2024
USD ($)
shares
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
Aug. 07, 2025
USD ($)
Sep. 19, 2024
USD ($)
Proceeds from Sale of Productive Assets                     $ 2,154,134 $ 110,000    
Noncash or Part Noncash Divestiture, Amount of Consideration Received                     0 918,372    
Proceeds from Sale of Equity Securities, FV-NI                     393,217 0    
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal               $ 484,615   $ 110,000 $ 2,154,134 1,028,372    
Reverse Stock Split [Member] | Subsequent Event [Member]                            
Stockholders' Equity Note, Stock Split, Conversion Ratio 10                          
ONCO [Member] | Common Stock [Member]                            
Investment Owned, Balance, Shares (in shares) | shares       142,749       142,749 142,749   142,749      
Proceeds from Sale of Equity Securities, FV-NI                 $ 400,000   $ 400,000      
ONCO [Member] | Preferred Shares Converted to Common Shares [Member]                            
Conversion of Stock, Shares Converted (in shares) | shares       142,749                    
ONCO [Member] | Reverse Stock Split [Member]                            
Stockholders' Equity Note, Stock Split, Conversion Ratio       40                    
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement [Member]                            
Disposal Group, Including Discontinued Operation, Consideration             $ 20,000,000              
Proceeds from Sale of Productive Assets             6,000,000              
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement [Member] | Promissory Notes Receivable, Due September 30, 2023 [Member]                            
Disposal Group, Including Discontinued Operation, Consideration             4,000,000              
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement [Member] | Promissory Notes Receivable, Due April 19, 2024 [Member]                            
Disposal Group, Including Discontinued Operation, Consideration             5,000,000              
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement [Member] | Promissory Notes Receivable, Due September 30, 2024 [Member]                            
Disposal Group, Including Discontinued Operation, Consideration             5,000,000              
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement [Member] | Milestone Receivable [Member]                            
Disposal Group, Including Discontinued Operation, Consideration             80,000,000              
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement, Amendment [Member]                            
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares           $ 1,000                
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares           $ 0.5254                
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal               $ 500,000     $ 2,200,000 $ 1,000,000    
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement, Amendment [Member] | ONCO [Member]                            
Preferred Stock, Convertible, Shares Issuable (in shares) | shares           5,709,935                
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement, Amendment [Member] | ONCO [Member]                            
Preferred Stock, Convertible, Shares Issuable (in shares) | shares       142,749                    
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement, Amendment [Member] | Preferred Stock [Member] | ONCO [Member]                            
Stock Issued During Period, Shares, Purchase of Assets (in shares) | shares           3,000                
Noncash or Part Noncash Divestiture, Amount of Consideration Received           $ 900,000                
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement, Amendment [Member] | Promissory Notes Receivable, Due September 30, 2023 [Member]                            
Proceeds from Collection of Notes Receivable           1,000,000                
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement, Amendment [Member] | Promissory Notes Receivable, Due September 30, 2023 [Member] | Note Receivable, Settlement Terms [Member]                            
Disposal Group, Including Discontinued Operation, Consideration           4,000,000                
Proceeds from Collection of Notes Receivable           $ 1,000,000                
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement, Amendment [Member] | Promissory Notes Receivable, Due April 19, 2024 [Member]                            
Proceeds from Collection of Notes Receivable         $ 50,000                  
Notes Receivable, Percentage of Revenues     25.00%   15.00%                  
Notes Receivable, Percentage of Net Proceeds   25.00% 20.00%   10.00%                  
Notes Receivable, Covenant, Minimum Net Capital Raised   $ 97,000                        
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Asset Purchase Agreement, Amendment [Member] | Promissory Notes Receivable, Due September 30, 2024 [Member]                            
Debt Instrument, Interest Rate, Stated Percentage                           10.00%
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | BWV Asset Purchase Agreement [Member] | Promissory Notes Receivable, Due September 30, 2024 [Member]                            
Disposal Group, Including Discontinued Operation, Consideration             $ 5,000,000             $ 3,500,000
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | BWV Asset Purchase Agreement [Member] | Promissory Notes Receivable, Due September 30, 2024 [Member] | Subsequent Event [Member]                            
Debt Instrument, Face Amount                         $ 5,100,000  
ENTADFI [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | BWV Asset Purchase Agreement [Member] | Promissory Notes Receivable, Due September 30, 2024 [Member] | Subsequent Event [Member] | Additional Loan to ONCO [Member]                            
Debt Instrument, Face Amount                         $ 100,000