Note 16 - Segments - Significant Asset Categories (Details) - USD ($) |
Mar. 31, 2026 |
Sep. 30, 2025 |
Mar. 31, 2025 |
Sep. 30, 2024 |
|---|---|---|---|---|
| Cash, cash equivalents and restricted cash | $ 27,596,820 | $ 15,794,562 | $ 20,018,392 | $ 24,916,285 |
| X | ||||||||||
- Definition Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; including, but not limited to, discontinued operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|