| Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
| | | Three Months Ended | | | Six Months Ended | |
| | | March 31, | | | March 31, | |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| | | | | | | | | | | | | | | | | |
| Income tax benefit at U.S. federal statutory rates | | $ | (649,435 | ) | | $ | (1,649,002 | ) | | $ | (1,769,276 | ) | | $ | (2,029,082 | ) |
| State income tax benefit, net of federal benefit | | | (102,054 | ) | | | (127,680 | ) | | | (278,029 | ) | | | (157,109 | ) |
| Non-deductible expenses | | | 18,946 | | | | 19,874 | | | | 20,596 | | | | 20,613 | |
| U.S. research and development tax credit | | | (137,696 | ) | | | (197,911 | ) | | | (254,453 | ) | | | (428,708 | ) |
| Other | | | 5,255 | | | | — | | | | 13,407 | | | | — | |
| Change in valuation allowance | | | 864,984 | | | | 1,954,719 | | | | 2,267,755 | | | | 2,594,286 | |
| Income tax expense | | $ | — | | | $ | — | | | $ | — | | | $ | — | |
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