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

Note 8 - Debt (Details Textual)

v3.25.3
Note 8 - Debt (Details Textual) - USD ($)
12 Months Ended
Dec. 30, 2024
Mar. 05, 2018
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2023
Nov. 01, 2022
Payment for Debt Extinguishment or Debt Prepayment Cost     $ 4,221,611 $ (0)    
Gain (Loss) on Extinguishment of Debt     8,624,778 0    
Credit Agreement [Member]            
Debt Instrument, Face Amount   $ 10,000,000        
Long-Term Debt   $ 0        
Residual Royalty Financing Agreement [Member]            
Royalty Agreement, Payment, Percentage   5.00%        
Payment for Debt Extinguishment or Debt Prepayment Cost $ 4,200,000          
Gain (Loss) on Extinguishment of Debt $ 8,600,000          
Residual Royalty Financing Agreement [Member] | Scenario, Change of Control or Sale of Business [Member]            
Royalty Agreement, Payment, Percentage   5.00%        
Royalty Agreement, Payment to Agent   $ 2,000,000        
Credit Agreement and Residual Royalty Financing Agreement [Member]            
Debt Instrument, Face Amount   $ 10,000,000        
Premium Finance Agreement [Member]            
Debt Instrument, Face Amount           $ 1,400,000
Debt Instrument, Interest Rate, Stated Percentage           6.30%
Accrued Liabilities and Other Liabilities     $ 0 $ 0 $ 100,000