Note 6 - Convertible Notes Payable, Senior Secured - Senior Secured Notes (Details) (Parentheticals) - USD ($)  | 
Sep. 30, 2023  | 
Sep. 30, 2022  | 
|---|---|---|
| Unsecured Convertible Notes [Member] | Related Party [Member] | ||
| Long-Term Debt, Gross | $ 96,000 | $ 96,000 | 
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
  | 
| X | ||||||||||
- Details 
  | 
| X | ||||||||||
- Details 
  |