Note 16 - Noncontrolling Interest (Details Textual) - Bollinger Motors Inc. [Member] - USD ($) $ in Millions |
9 Months Ended | |||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 02, 2025 |
May 31, 2025 |
May 26, 2025 |
|
| Additional Investment Into Newly Issued Shares Of The Subsidiary, Value | $ 27.5 | |||
| Subsidiary, Ownership Percentage, Parent | 95.00% | |||
| Minimum [Member] | ||||
| Subsidiary, Ownership Percentage, Parent | 95.00% | 95.00% |