Note 14 - Commitments and Contingencies (Details Textual) - USD ($) |
9 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Sep. 30, 2025 |
|
| Asset Management Contract Term (Year) | 3 years | |
| Regulatory Asset, Noncurrent | $ 5,291,256 | $ 3,315,082 |
| Deferred LNG Facility Costs [Member] | ||
| Regulatory Asset, Noncurrent | 2,093,937 | $ 0 |
| LNG Tank Damage Cost Estimate [Member] | Minimum [Member] | ||
| Estimate of Possible Damages Related to LNG Tank Damages | 1,000,000 | |
| LNG Tank [Member] | ||
| Energy Related Inventory, Natural Gas in Storage, Portion Removed | $ 450,000 |