Note 16 - Leases - Lease Cost (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Cash paid on operating leases | $ 9,900 | $ 16,500 | $ 35,700 | $ 33,000 |
| Weighted-average remaining term (in years) (Year) | 14 years 9 months 18 days | 15 years 9 months 18 days | 14 years 9 months 18 days | 15 years 9 months 18 days |
| Weighted-average discount rate | 5.65% | 5.64% | 5.65% | 5.64% |
| Right of use obtained in exchange for operating lease obligations | $ 17,039 | |||
| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|