Annual report pursuant to Section 13 and 15(d)

Note 1 - Nature of Business and Significant Accounting Policies (Details Textual)

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Note 1 - Nature of Business and Significant Accounting Policies (Details Textual)
 3 Months Ended 12 Months Ended
Oct. 01, 2009
USD ($)
Mar. 31, 2023
USD ($)
Sep. 30, 2024
USD ($)
shares
Sep. 30, 2023
USD ($)
Sep. 24, 2024
shares
Number of Reporting Units     2    
Number of Operating Segments     1    
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)     $ 0 $ 3,900,000  
Advertising Expense     800,000 900,000  
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax     600,000 600,000  
Assets     60,418,772 50,023,091  
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax $ 0        
Non-US [Member]          
Assets     9,200,000 10,500,000  
In Process Research and Development [Member]          
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)   $ 3,900,000 $ 3,900,000 $ 3,900,000  
Common Stock [Member]          
Investment Owned, Balance, Shares (in shares) | shares     142,749   142,749
Investment Owned, Balance, Principal Amount     $ 700,000    
FC2 Female Condom [Member] | Private Commercial and Public Healthcare Sector [Member]          
Number of Countries in which Entity Operates     150 150