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v3.24.3

Note 13 - Subsequent Events (Details Textual) |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 04, 2024 USD ($) shares | Oct. 31, 2024 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) $ / shares | Sep. 30, 2023 $ / shares | Sep. 30, 2022 $ / shares | Aug. 31, 2022 USD ($)
Equity Offering, Maximum Amount | $ |  |  |  |  |  | $ 150,000,000
Stock Issued During Period, Value, New Issues | $ |  |  | $ 729,387 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  |  | $ 21.74 | $ 19.51 | $ 28 |
Series A-1 Convertible Preferred Stock [Member] |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share | $ / shares |  | $ 10,000 |  |  |  |
Subsequent Event [Member] | Series A-1 Convertible Preferred Stock [Member] |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share | $ / shares |  | $ 10,000 |  |  |  |
At The Market Offering Agreement [Member] | Subsequent Event [Member] |  |  |  |  |  |
Equity Offering, Maximum Amount | $ | $ 3,870,000 | $ 3,870,000 |  |  |  |
Stock Issued During Period, Shares, New Issues | shares | 220,269 |  |  |  |  |
Stock Issued During Period, Value, New Issues | $ | $ 600,000 |  |  |  |  |
Private Placement, Securities Purchase Agreement [Member] | Warrants to Purchase Common Shares [Member] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares |  | 326,560 |  |  |  |
Private Placement, Securities Purchase Agreement [Member] | Subsequent Event [Member] |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Ratio |  | 0.75 |  |  |  |
Shares Issued, Price Per Share | $ / shares |  | $ 10,272.13 |  |  |  |
Proceeds from Issuance or Sale of Equity | $ |  | $ 1,540,819 |  |  |  |
Private Placement, Securities Purchase Agreement [Member] | Subsequent Event [Member] | Warrants to Purchase Common Shares [Member] |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  | $ 3.445 |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares |  | 326,560 |  |  |  |
Warrants and Rights Outstanding, Term (Year) |  | 5 years |  |  |  |
Private Placement, Securities Purchase Agreement [Member] | Subsequent Event [Member] | Series A-1 Convertible Preferred Stock [Member] |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | shares |  | 150 |  |  |  |
Stock Issued During Period, Value, New Issues | $ |  | $ 5,000,000 |  |  |  |
Private Placement, Securities Purchase Agreement [Member] | Subsequent Event [Member] | Series A-1 Convertible Preferred Stock [Member] | Conversion of Series A-1 Convertible Preferred Shares to Common Shares [Member] |  |  |  |  |  |
Preferred Stock, Convertible, Shares Issuable | shares |  | 2,903 |  |  |  |
Preferred Stock, Convertible, Conversion Price | $ / shares |  | $ 3.445 |  |  |  |
Convertible Preferred Stock, Shares Issued upon Conversion | shares |  | 435,414 |  |  |  |

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