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

Note 4 - Fair Value Measurements - Schedule of Reconciliation of Liabilities Measured at Fair Value on Recurring Basis (Details)

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Note 4 - Fair Value Measurements - Schedule of Reconciliation of Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair Value, Inputs, Level 3 [Member] - Embedded Derivative Financial Instruments [Member] - USD ($)
12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Balance $ 1,570,000 $ 1,331,000
Change in fair value of derivative liabilities 3,138,316 239,000
Extinguishments (4,708,316) 0
Balance $ 0 $ 1,570,000