| Lease, Cost [Table Text Block] |
| | | March 31, 2025 | | | September 30, 2024 | |
| Assets: | | | | | | | | |
| Operating lease right-of-use assets | | $ | 2,864,917 | | | $ | 3,041,485 | |
| Liabilities: | | | | | | | | |
| Operating lease liabilities, current | | | (2,725,580 | ) | | | (2,893,967 | ) |
| Operating lease liabilities, noncurrent | | | (10,527,500 | ) | | | (11,648,662 | ) |
| Total lease liabilities | | $ | (13,253,080 | ) | | $ | (14,542,629 | ) |
| Weighted average remaining lease terms: | | | | | | | | |
| Operating leases (in years) | | | 4.94 | | | | 5.10 | |
| Weighted average discount rate: | | | | | | | | |
| Operating leases | | | 28 | % | | | 28 | % |
| Cash paid for amounts included in the measurement of lease liabilities for the three months ended March 31, 2025 and 2024 | | | 1,748,610 | | | | 721,674 | |
| Cash paid for amounts included in the measurement of lease liabilities for the six months ended March 31, 2025 and 2024 | | | 3,241,170 | | | | 1,580,908 | |
| Operating lease costs: | | For the Three Months Ended March 31, | | | For the Six Months Ended March 31, | |
| | | 2025 | | | 2024 | | | 2025 | | | 2024 | |
| Fixed lease cost | | $ | 998,251 | | | $ | 1,620,919 | | | $ | 2,125,465 | | | $ | 2,936,964 | |
| Variable and short-term lease cost | | | 56,207 | | | | 193,627 | | | | 139,576 | | | | 250,323 | |
| Sublease income | | | — | | | | (144,787 | ) | | | — | | | | (311,950 | ) |
| Total operating lease costs | | $ | 1,054,458 | | | $ | 1,669,759 | | | $ | 2,265,041 | | | $ | 2,875,337 | |
|
| Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] |
| Years ending September 30, | | | | |
| 2025 (6 months) | | $ | 3,222,484 | |
| 2026 | | | 5,022,623 | |
| 2027 | | | 5,000,409 | |
| 2028 | | | 4,827,540 | |
| 2029 | | | 1,358,041 | |
| Thereafter | | | 5,994,883 | |
| Total lease payments | | $ | 25,425,980 | |
| Less: imputed interest | | | (12,172,900 | ) |
| Carrying amount of lease liabilities | | $ | 13,253,080 | |
|