Note 13 - Income Taxes - Schedule of Reconciliation (Details) (Parentheticals) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Tax Jurisdiction of Domicile [Extensible Enumeration] | Income Tax Jurisdiction, Domestic Federal [Member] | Income Tax Jurisdiction, Domestic Federal [Member] | Income Tax Jurisdiction, Domestic Federal [Member] | Income Tax Jurisdiction, Domestic Federal [Member] |