Quarterly report [Sections 13 or 15(d)]

Note 4 - Investments (Details Textual)

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Note 4 - Investments (Details Textual)
$ in Thousands
6 Months Ended 12 Months Ended
Mar. 31, 2025
USD ($)
Sep. 30, 2024
USD ($)
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions 6 6
Debt Securities, Available for Sale, Other than Temporary Impairment $ 0 $ 0