Annual report pursuant to Section 13 and 15(d)

Note 1 - Summary of Significant Accounting Policies - Allowance for Doubtful Accounts (Details)

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Note 1 - Summary of Significant Accounting Policies - Allowance for Doubtful Accounts (Details) - USD ($)
12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Balance at Beginning of Year $ 79,000 $ 79,000
Additions Charged to Costs and Expenses 0  
Less Write-offs 0 0
Balance at End of Year $ 79,000 $ 79,000