Note 7 - Derivative Liabilities (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Derivative Liability, Total | $ 1,628,113 | |
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease), Total | 108,944 | $ 679,271 |
| Series F Warrants Relating To 2017 Securities Purchase Agreement [Member] | ||
| Cash Price Per Each Common Stock Underlying Warrants | 0.18 | |
| Series G Warrants Relating To 2018 Securities Purchase Agreement [Member] | ||
| Cash Price Per Each Common Stock Underlying Warrants | 0.11 | |
| Series H Warrants Relating To 2019 Securities Purchase Agreement [Member] | ||
| Cash Price Per Each Common Stock Underlying Warrants | $ 0.0533 | |
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- Definition The cash price per each common stock underlying warrants. No definition available.
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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