| Line Item | Jul 31, 2026 | Apr 30, 2026 | Jan 31, 2026 | Oct 31, 2025 | Jul 31, 2025 | Apr 30, 2025 | Jan 31, 2025 | Oct 31, 2024 | Jul 31, 2024 | Apr 30, 2024 | Jan 31, 2024 | Oct 31, 2023 | Jul 31, 2023 | Apr 30, 2023 | Jan 31, 2023 | Oct 31, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | ||||||||||||||||
| YoY growth | -29.7% | -35.1% | -37.6% | -46.4% | ||||||||||||
| Costs and expenses: | ||||||||||||||||
| Cost of revenues | ||||||||||||||||
| Research and development | ||||||||||||||||
| Selling, general and administrative | ||||||||||||||||
| Total Costs and Expenses | ||||||||||||||||
| % of revenue | 303.6% | 389.4% | 354.8% | 1221.3% | ||||||||||||
| Loss from operations | ||||||||||||||||
| % of revenue | -203.6% | -289.4% | -254.8% | -1121.3% | ||||||||||||
| Other income (expense): | ||||||||||||||||
| Interest income | — | — | ||||||||||||||
| Interest expense | ||||||||||||||||
| Total other income (expense) | ||||||||||||||||
| Loss before provision for income taxes | ||||||||||||||||
| Net loss | ||||||||||||||||
| % of revenue | -201.3% | -286.6% | -241.6% | -1119.0% | ||||||||||||
| Preferred shares dividend | — | — | ||||||||||||||
| Net loss available to common stockholders - basic | ||||||||||||||||
| Net loss available to common stockholders - diluted | ||||||||||||||||
| Net loss per share attributable to common stockholders - basic | ||||||||||||||||
| Net loss per share attributable to common stockholders - diluted |